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What vulnerability prioritization looks like when KEV, EPSS, and CVSS disagree

Cohesity field CISO Joye Purser ranks KEV over EPSS over CVSS and urges 24-72 hour patching of exploited internet-facing systems.

In a Help Net Security interview, Cohesity Global Field CISO Joye Purser lays out a vulnerability prioritization framework that puts active exploitation (KEV) first, then exploit likelihood (EPSS), then technical severity (CVSS), adjusted for asset exposure, business criticality, and compensating controls. She endorses 24-72 hour remediation targets for critical exploited internet-facing vulnerabilities and describes the organizational tradeoffs and emergency procedures needed to hit them. The interview also covers honeypot failure modes when deception systems are over-connected or over-trusted, and budget guidance recommending OT/IT segmentation, phishing-resistant MFA, and tested recovery for a 400-person manufacturer.

Help Net Security · 16d agoIndustry

AI's Vulnerability Surge May Be More Manageable Than First Feared

New research argues the coming surge of vulnerabilities will be manageable for enterprise security teams that adopt the right triage and prioritization strategies.

A Dark Reading write-up of new research suggests the anticipated explosion in vulnerability volume may be less overwhelming than feared. The analysis indicates enterprise security teams can cope if they apply appropriate strategies for handling vulnerability influx. The piece is framed as guidance rather than a disclosure of specific flaws or incidents.

Dark Reading · 14d agoResearch

Your Critical Vulnerabilities Might Not Be Your Biggest Risk

Autonomous penetration testing advocates prioritize exploitable attack paths over raw vulnerability severity for continuous security validation.

The article argues that scanner severity scores lack context: a critical flaw behind strong segmentation may be low priority, while a medium flaw on internet-facing systems can provide a foothold chained toward sensitive data. It positions autonomous penetration testing and attack path validation as the execution layer for continuous security validation, replacing point-in-time assessments. The piece is vendor-authored thought leadership rather than incident or vulnerability news.

The Hacker News · 5d agoIndustry1

Building a risk-based vulnerability management program that scales

Asimily CEO Shankar Somasundaram outlines a risk-based vulnerability management approach using inventory, attack paths, KEV and EPSS data.

In a Help Net Security video, Asimily CEO Shankar Somasundaram argues patching everything is infeasible as AI-driven attacks inflate vulnerability counts, with one customer finding a thousand unknowns for each known one. He recommends building a full inventory of devices, applications, and data flows, mapping attack paths for reachability, and prioritizing with KEV, EPSS, and business impact. Mitigations include patching, virtual patching via NACs and firewalls, segmentation, and configuration snapshots to detect drift.

Help Net Security · 23d agoIndustry

Frontier AI: Vulnerability Management's Systemic Revolution

Opinion: frontier AI like Anthropic's Mythos finds and exploits vulnerabilities at machine speed, forcing vulnerability and patch management programs to overhaul prioritization.

The author argues frontier AI models, exemplified by Anthropic's Mythos, can discover zero-days and chain exploits fast enough to overwhelm traditional vulnerability management. The piece recommends moving beyond CVSS, EPSS and KEV toward exposure management (CTEM) and automated, ring-based patch deployment. It also flags hard trade-offs between patching velocity and uptime requirements that organizations must resolve proactively.

The Hacker News · 22d agoIndustry

The Vulnerability Gap: Why Discovery Is Outrunning Repair

Dark Reading argues AI-accelerated vulnerability discovery and tightening regulation are widening the gap between flaw discovery and repair capacity.

The article argues that AI tooling is increasing the pace at which vulnerabilities are discovered while remediation capacity has not kept up, creating a growing backlog. It frames this widening 'vulnerability gap', combined with a tightening regulatory environment, as an all-hands-on-deck moment for security teams. The piece is analysis and opinion rather than disclosure of a specific flaw.

Dark Reading · 23d agoIndustry

PrivEscalate: Measuring and Augmenting the Threat of LLM-Automated Linux Privilege Escalation

Researchers release PrivEscalate, a 531-scenario benchmark showing LLM agents' Linux privilege-escalation success varies by vulnerability class, plus PrivEscAgent, a domain-specialized agent that boosts success.

The paper introduces PrivEscalate, an open-source benchmark of 531 Dockerized Linux privilege-escalation scenarios spanning 14 sub-categories, plus 329 parameterized variants measuring sensitivity to environmental distractors. Evaluating six LLMs across three agent architectures shows capability is heterogeneous across vulnerability classes, sensitive to perturbation, and architecture-dependent. The authors also present PrivEscAgent, a wrapper adding deterministic enumeration, category matching, and step planning that outperforms prior privesc-agent baselines without modifying the underlying LLM. The benchmark is released to support LLM agent evaluation, defensive tool validation, and red-team training.

arXiv cs.CR · 8d agoResearch

Why federal cyber defense demands an offense-driven mindset

Opinion piece argues federal agencies should prioritize exploitability and autonomous penetration testing over static CVSS-based patching, citing CISA's BOD 26-04 and NSA's CAPT program.

The author argues that static CVSS-driven patching leaves federal agencies exposed because vulnerable does not equal exploitable, and adversaries chain misconfigurations and stolen credentials instead of burning zero-days. The piece cites CISA's BOD 26-04 and the NSA's Continuous Autonomous Penetration Testing (CAPT) program, which logged 28,282 completed pentests across 822 Defense Industrial Base organizations and closed 71% of critical findings within 30 days. It recommends defining risk by exploitability and mission impact and augmenting human pentesting with autonomous validation and verification.

CyberScoop · 8d agoIndustry

Why AI raises the stakes for exposure validation

Fal.Con 2026 commentary argues AI accelerates vulnerability discovery and exploitation, making evidence-based exposure validation essential for defender prioritization.

CSO Online reports on the exposure-validation theme at CrowdStrike's Fal.Con 2026 conference, where CEO George Kurtz described AI as the new cyber battlefield and emphasized AI red teaming and continuous security. The piece argues that as AI speeds up vulnerability discovery and exploitability analysis on both sides, teams must determine which exposures are actually exploitable in their environments—chained weaknesses, credential abuse, lateral movement, privilege escalation—rather than chasing theoretical risk. It points readers to Horizon3's conference perspective.

CSO Online · 5d agoIndustry

Vulnerability Localization Benchmark: Measuring Agentic Security Analysis at Repository Scale

VLoc Bench tests 27 language models at locating vulnerable files in 290 repositories; best system reaches 0.229 File F1 and 38.4% of tasks unsolved.

The Vulnerability Localization Benchmark (VLoc Bench) contains 500 real-world vulnerabilities from 290 repositories across six package ecosystems and 147 CWE categories, pairing pre-fix and post-fix repository snapshots. Agents receive only a CWE description and read-only terminal access to identify affected files, and must confirm absence on patched snapshots. The strongest of 27 language models and four static-analysis tools achieves just 0.229 File F1; 38.4% of tasks receive no correct localization, and effective localizers still report unsupported locations on patched repositories.

arXiv cs.AI / cs.LG / cs.CL · 2d agoAI research

Drowning in CVEs and thirsty for answers? Try CTEM

Sponsored Register piece argues traditional vulnerability management cannot scale with CVE volume and promotes Continuous Threat Exposure Management via Horizon3's NodeZero.

The sponsored article cites surging CVE volumes, CVSS triage shortcomings, NVD backlog, and AI-driven discovery accelerating an asymmetric vulnerability cycle. It outlines Gartner's five CTEM steps - scoping, discovery, prioritization, validation, and mobilization - and describes how Horizon3's NodeZero automated pentesting validates exploitable attack paths with evidence. Horizon3 says NodeZero uses a deterministic machine learning expert system rather than general LLMs, limiting generative AI to scoped tasks via AWS Bedrock.

The Register · Security · 13d agoIndustry

Quantifying IIoT Sensor Node Criticality by Fusing its Data Criticality and Security Vulnerability

Researchers propose a Dempster–Shafer framework fusing IIoT sensor data criticality with CVSS 4.0/3.1 vulnerability scores to rank node criticality.

The paper introduces a framework that evaluates Industrial IoT sensor node criticality by fusing data criticality and cybersecurity vulnerability scores using Dempster–Shafer (D-S) theory. It was validated on a dataset from red wine production and is claimed to generalize to other industrial settings with minimal modification. Results show criticality rankings derived from CVSS 4.0 scores differ significantly from those derived from CVSS 3.1, underscoring how vulnerability scoring methodology affects security prioritization.

arXiv cs.CR · 7d agoResearch

VEX-Bench: Benchmarking LLM Agents for Assessing Exploitability of Software Supply Chain Vulnerabilities

Introduces VEX-Bench, 75 expert-labeled real-world cases testing whether LLM agents can assess supply chain vulnerability exploitability; frontier models reach about 80% F1.

VEX-Bench is the first benchmark evaluating LLM agents on assessing whether upstream dependency vulnerabilities are exploitable in downstream projects, with 75 real-world expert-labeled cases across Python, Java, and Go mined from GitHub. Nine models across three agent harnesses were evaluated; GPT-5.5 and Claude Opus 4.6 reach approximately 80% F1 on binary vulnerability-status classification, but only GPT-5.5 surpasses 70% macro-F1 on fine-grained justification classification. The gap highlights the difficulty of moving beyond binary exploitability calls to explaining exploitability reasons, unlike prior benchmarks targeting zero-day settings.

arXiv cs.CR · 8d agoResearch1

Introducing Continuous Vulnerability Assessment: Real-Time Defense for the AI Threat Era

Wiz launched Continuous Vulnerability Assessment (CVA), alerting customers to exposure against newly published vulnerabilities in real time.

Wiz introduced Continuous Vulnerability Assessment, a capability that detects exposure to newly published vulnerabilities the moment they are disclosed. The company positions CVA as real-time defense for the AI threat era, reducing the window between disclosure and remediation decisions. The item is a vendor product announcement with no incident details.

Wiz Blog · 15d agoTools

Enterprise Applications Carry 4.31x More Critical and High Vulnerabilities

Sonatype reports enterprise applications contain 4.31x more critical and high-severity vulnerabilities as accelerated software creation drives rising vulnerability levels.

Sonatype's analysis found enterprise applications carry 4.31 times more critical and high-severity vulnerabilities. The report links rising vulnerability levels to accelerated enterprise software creation. The findings are part of Sonatype's software supply chain research coverage reported by Infosecurity Magazine.

Infosecurity Magazine · 29d agoIndustry

CISA: Most exploited vulnerabilities should have been eradicated decades ago

CISA says most exploited vulnerabilities are decades-old flaws, blaming organizational culture and weak Secure by Design adoption.

CISA assesses that the vulnerabilities most exploited in the wild are old flaws that should have been eradicated decades ago. The agency attributed the problem to organizational culture and systemic gaps in Secure by Design adoption. The Register's coverage frames the remarks as renewed pressure on vendors and operators to eliminate long-standing weaknesses.

The Register · Security · 19d agoPolicy & legal in the wild

What Zero-Day Response Should Be in the Post-Mythos Era

Picus Security outlines a zero-day response playbook where defenders simulate exploit technique chains before public PoCs exist.

The article uses PaperCut NG/MF's August incident — exploitation in the wild before any patch, with the first emergency fix bypassed the same day and a third landing September 1 — as the template for AI-accelerated vulnerability response. It walks through a hypothetical CVE-2026-1001 (explicitly made up) to argue defenders should map CVEs to ATT&CK technique chains and simulate them against NGFW, WAF, EDR, endpoint hardening, and SIEM controls within minutes of disclosure. It notes disclosure-to-exploitation time has fallen from 21.5 days to hours.

BleepingComputer · 1d agoResearch in the wildCVE-2026-1001

AI vulnerability discovery scores the highest impact of 20 emerging risks

Gartner survey of 316 organizations ranks AI-driven vulnerability discovery as the top emerging risk, with tangible impact expected within roughly two years.

Gartner's quarterly survey had 316 risk managers, auditors, and senior executives rank 20 emerging threats in April and May, with AI discovery of cyber vulnerabilities ranked first, up from outside the top five the prior quarter. Respondents scored the impact time frame at 1.92 on a scale where 1 means under a year and 2 means one to two years, and 76% placed it in their top ten, ranking first in all four regions and highest among banking and financial respondents at 78%. The analysis notes AI now finds unknown flaws at volumes patching teams cannot absorb and that exploit development time has collapsed, citing defensive efforts like Anthropic's Project Glasswing and OpenAI's Daybreak. Gartner recommends recalibrating cyber risk impact, revisiting risk appetite, demanding stronger vendor security validation, and moving toward faster automated remediation.

Help Net Security · 21d agoIndustry

Toward an Empirical Probabilistic Risk Manifestation Model of Organizational Cybersecurity in SMEs

Empirical study of 22 SME security assessments builds a probabilistic risk model and shows assessments can be cut 24-45% while retaining most critical findings.

Researchers analyzed 281 validated security findings from 22 real-world SME cybersecurity assessments conducted over two years via a pro bono university clinic. They derived an empirical Risk Manifestation Model linking eight organizational security functions to two exposure conditions, five attack mechanisms, and six outcome categories, using probability propagation to identify dominant risk pathways. The dominant pathway runs from asset exposure to credential compromise to unauthorized access, stable under leave-one-organization-out analysis. Retaining six functions reduces assessment burden by 24% while preserving 97% of critical findings; five functions cut burden 45% while preserving 89% of critical findings.

arXiv cs.CR · 2d agoResearch

CISOs are feeling the security burden of accelerated AI use

Proofpoint's Voice of the CISO survey finds 85% of CISOs prioritizing AI security, with 80% managing AI risks without proportional resources.

Proofpoint's annual Voice of the CISO report, a Censuswide survey of 1,600 CISOs across 16 countries, found 85% rank securing AI assistants, copilots and automation among top priorities for the next two years. Eight in ten say they must manage AI-related security risk without a proportional increase in resources or expertise, and 78% now consider generative AI a major security risk, up 18% year over year. Board alignment improved to 85%, though nearly 80% still report excessive board pressure; 80% cite human behavior as the biggest cyber vulnerability.

Proofpoint Threat Insight · 7d agoIndustry

Pacing model development in an era of cyber-critical capabilities

OpenAI details strengthened monitoring, alignment, and security safeguards that will guide the pace of frontier model development as cyber capabilities grow.

OpenAI outlined new safeguards around monitoring, alignment, and security intended to guide the pacing of frontier model development. The post frames these measures in the context of models reaching cyber-critical capabilities. It describes safety process and deployment policy rather than a specific incident, model, or vulnerability.

OpenAI News · 29d agoAI safety & security

Searchlight Cyber combines exposure and threat intelligence in new PTEM platform

Searchlight Cyber launched its PTEM platform, merging exposure management from Assetnote with dark web threat intelligence to prioritize likely-exploited exposures.

Searchlight Cyber launched its Preemptive Threat Exposure Management (PTEM) platform, unifying Searchlight Exposure (formerly Assetnote) with Searchlight Threat, which consolidates the Cerberus investigations platform and DarkIQ dark web monitoring. The platform pairs continuous attack surface discovery and exploitability validation with attacker intelligence from the open, deep and dark web to help teams prioritize the exposures most likely to be exploited. The launch follows the 2025 Assetnote acquisition and a new corporate identity, and cites a Gartner forecast that preemptive security will reach 50% of IT security spending by 2030.

Help Net Security · Aug 13, 2026Tools

Can your coding style predict whether your code is vulnerable?

University of Massachusetts Dartmouth researchers present VulStyle, a stylometry-based vulnerability detector that also exposes benchmark reliability problems.

VulStyle combines stylometric features with syntax-tree structure and source tokens, pre-trained on about 4.9 million functions across seven programming languages and fine-tuned on five vulnerability detection datasets. It beat token-only detectors on some benchmarks but its F1 drops sharply on DiverseVul, which the authors link to noisy labels inflating reported performance across popular datasets. The authors argue style-aware detection should be harder to evade but did not test this empirically, and they note that uniform LLM-generated code may strip away the individual developer style the model depends on.

Help Net Security · 23d agoResearch1

Evaluating the NIST Bugs Framework Against CWE as a Successor for Automated Vulnerability Classification

NIST Bugs Framework evaluation shows it is more structured and automation-friendly than CWE for automated vulnerability classification, with gaps in attribute guidance.

The paper evaluates NIST SP 800-231's Bugs Framework (BF) against CWE as a target for automated CVE classification using a systematically screened corpus of CVE-to-CWE research. An inter-rater study with 2 subject-matter experts mapping 13 CVEs showed strong agreement on BF's cause and operation axes but only fair agreement on the attribute axis. Automated classification was tested across two LLM deployments under different budgets, and findings support BF as more structured and automation-friendly than CWE, though gaps include under-specified attribute guidance and missing fix commits for closed-source software.

arXiv cs.CR · 1d agoResearch1

Securing the unpatchable in an age of AI-driven vulnerabilities

Cisco Talos argues AI-driven vulnerability discovery leaves unpatchable OT systems exposed, recommending virtual patching via NGFW/IPS and micro-segmentation.

AI-assisted code analysis is uncovering vulnerabilities faster than organizations can patch, leaving certified or end-of-life OT systems with unmitigated known flaws. Talos recommends virtual patching with next-generation firewalls and IPS, micro-segmentation using VLANs and ACLs, and building visibility-based inventories of legacy systems. The article cites WannaCry's impact on the NHS and 2023 exploitation of end-of-life software in government systems, and warns that air gaps and data diodes are routinely circumvented by operational shortcuts.

Cisco Talos · 12h agoResearch

What Fal.Con 2026 Reinforced: AI Makes Proving Exposure More Important Than Ever

Horizon3's Fal.Con 2026 recap argues AI-accelerated vulnerability discovery makes continuous attacker-based exposure validation essential for defenders.

In a Fal.Con 2026 recap, Horizon3 argues that AI is compressing the time between vulnerability discovery and exploitation, making attacker-derived evidence about real exploitability the key prioritization signal. Horizon3 announced it joined CrowdStrike's Project QuiltWorks, with NodeZero exploitability intelligence flowing into Falcon Next-Gen SIEM and Falcon Fusion SOAR workflows able to trigger NodeZero 1-Click Verify for remediation testing. The company reported running over 1,200 NodeZero demos during the show, and CrowdStrike CEO George Kurtz's keynote framed AI red teaming and offense-informing-defense as central themes.

Horizon3.ai · 12d agoIndustry

AI Changed the Exposure Problem. Validation Needs to Change With It.

Picus Security argues vulnerability validation must combine exploitability, control validation, and agentic pentesting as AI accelerates disclosure volume.

Picus Security reports 35,853 CVEs were published in H1 2026, roughly 49% more than the prior year, while only 495 were catalogued as exploited in the wild and 116 were attacked on disclosure day. The vendor argues CVSS-based triage is inadequate and promotes combining exploitability validation, security control validation, and agentic pentesting into one program. The post also cites Anthropic data showing Mythos-class models surfaced 26,153 open-source vulnerability candidates with only 421 patched upstream, and promotes Picus's Validation Summit '26 on October 14-15.

The Hacker News · 2d agoIndustry