Search: “greynoise”

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DomainAll Cyber AIWindow24h 3d 7d 30d AllIn the wild Important only Show duplicates

CategoryAll Exploit / PoC 100 Vulnerability 94 Ransomware 49 Malware 26 Threat actor 16 Data breach 12 Tools 3 Industry 3 AI safety & security 2 Phishing & fraud 1

SeverityAll critical 223 high 56 medium 15 low 8 info 4

Hackers Use Hundreds of AI Agents to Exploit PaperCut Flaws and Compromise 440 Servers Worldwide

A Russian-speaking actor used hundreds of AI agents to exploit PaperCut flaws, compromising 440 servers across 395 organizations in 48 countries.

GreyNoise's Global Observation Grid observed a Russian-speaking threat actor operating from IP 45.142.193.132 deploy hundreds of autonomous AI agents, built on OpenAI's Codex harness with a DeepSeek model, to exploit PaperCut NG/MF flaws CVE-2026-81578 (authentication bypass) and CVE-2026-82078 (unsafe reflection RCE). At least 440 servers across 395 organizations in 48 countries were compromised; the US had 98 victims and educational institutions accounted for 204. The agents paired with Mimikatz, Certipy, Rubeus, and Impacket, escalated to domain admin in 12 of 440 cases, and executed DCSync to exfiltrate the full NTDS.DIT credential database.

Cyber Security NewsSep 9, 14:40 UTC · 7d agoThreat actor in the wildCVE-2026-81578 CVE-2026-82078 CVE-2021-42278+1 CVEs1

Attackers never let a critical vulnerability go to waste

Help Net SecurityApr 23, 13:39 UTC · Apr 23, 2026Vulnerability in the wildCVE-2022-1388 CVE-2022-261341

Ivanti EPMM exploitation: Researchers warn of "sleeper" webshells

Help Net SecurityFeb 11, 00:00 UTC · Feb 11, 2026Data breach in the wildCVE-2026-1281 CVE-2026-13401

Hackers Regularly Exploit Vulnerabilities Before Public Disclosure

Infosecurity MagazineAug 1, 11:15 UTC · Aug 1, 2025Vulnerability in the wild

ViciousTrap Uses Cisco Flaw to Build Global Honeypot from 5,300 Compromised Devices

The Hacker NewsMay 29, 08:55 UTC · May 29, 2025Exploit / PoC in the wildCVE-2023-20118 CVE-2023-39780

Nearly 24,000 IPs Target PAN-OS GlobalProtect in Coordinated Login Scan Campaign

The Hacker NewsApr 2, 06:27 UTC · Apr 2, 2025Threat actor in the wild

Over 400 IPs Exploiting Multiple SSRF Vulnerabilities in Coordinated Cyber Attack

The Hacker NewsMar 15, 00:00 UTC · Mar 15, 2025Vulnerability in the wildCVE-2017-0929 CVE-2020-7796 CVE-2021-21973+7 CVEs

Experts warn of a coordinated surge in the exploitation attempts of SSRF vulnerabilities

Security AffairsMar 13, 14:31 UTC · Mar 13, 2025Vulnerability in the wildCVE-2020-7796 CVE-2021-22214 CVE-2021-39935+7 CVEs

Old Vulnerabilities Among the Most Widely Exploited

Infosecurity MagazineFeb 28, 11:00 UTC · Feb 28, 2025Vulnerability in the wildCVE-1999-0526

Attackers actively exploit a critical zero

Security AffairsJan 29, 14:39 UTC · Jan 29, 2025Exploit / PoC in the wildCVE-2024-40891 CVE-2024-40890

Noise Storms: Mysterious massive waves of spoofed traffic observed since 2020

Security AffairsSep 22, 12:14 UTC · Sep 22, 2024Threat actor

MOVEit Transfer software zero

Security AffairsJun 7, 13:57 UTC · Jun 7, 2023Exploit / PoC in the wild

Microsoft blames Clop gang for 'MOVEit Transfer' attacks

Security AffairsJun 5, 15:07 UTC · Jun 5, 2023Ransomware in the wildCVE-2023-34362

BlueKeep scans observed from exclusively Tor exit nodes

Security AffairsMay 27, 16:53 UTC · May 27, 2019Exploit / PoC in the wildCVE-2019-0708

Threat Actors Are Posing as OpenAI, Anthropic and DeepSeek to Target Credentials and Secrets

GreyNoise observes scanners spoofing OpenAI, Anthropic, and DeepSeek crawler user agents to hunt leaked credentials and secrets.

GreyNoise is observing automated scanners that pose as the web crawlers of OpenAI, Anthropic, DeepSeek, and Fortune 500 companies. The scanners use forged user agents while requesting files where misconfigured web servers frequently leak secrets and credentials. This activity abuses trust in AI crawler traffic to discover exposed credentials for follow-on attacks.

GreyNoiseAug 28, 00:00 UTC · 19d agoExploit / PoC in the wild

Researchers track dozens of organizations affected by React2Shell compromises tied to China’s MSS

The RecordDec 8, 16:31 UTC · Dec 8, 2025Exploit / PoC in the wildCVE-2025-55182

Fortinet Warns Exploit Code Available for Critical Vulnerability

Infosecurity MagazineAug 14, 10:45 UTC · Aug 14, 2025Vulnerability CVE-2025-25256

Brute-force attacks hammer Fortinet devices worldwide

Help Net SecurityAug 14, 00:00 UTC · Aug 14, 2025Exploit / PoC in the wild

Check for CitrixBleed 2 exploitation even if you patched quickly! (CVE-2025-5777)

Help Net SecurityJul 21, 14:34 UTC · Jul 21, 2025Vulnerability in the wildCVE-2025-5777

MOVEit Systems Face Fresh Attack Risk Following Scanning Activity

Infosecurity MagazineJun 27, 09:00 UTC · Jun 27, 2025Ransomware in the wildCVE-2023-34362 CVE-2023-36934

MOVEit Transfer Faces Increased Threats as Scanning Surges and CVE Flaws Are Targeted

The Hacker NewsJun 27, 07:49 UTC · Jun 27, 2025Ransomware in the wildCVE-2023-34362 CVE-2023-36934

Friday Squid Blogging: NGC 1068 Is the "Squid Galaxy"

Schneier on SecurityJun 2, 03:22 UTC · Jun 2, 2025Vulnerability1

251 Amazon-Hosted IPs Used in Exploit Scan Targeting ColdFusion, Struts, and Elasticsearch

The Hacker NewsMay 28, 09:23 UTC · May 28, 2025Vulnerability in the wildCVE-2018-15961 CVE-2017-5638 CVE-2022-26134+2 CVEs

Bug affecting PHP scripts demands ‘immediate action from defenders globally’

The RecordMar 7, 21:24 UTC · Mar 7, 2025Vulnerability CVE-2024-4577

Hackers Chain Exploits of Three Palo Alto Networks Firewall Flaws

Infosecurity MagazineFeb 20, 12:45 UTC · Feb 20, 2025Ransomware in the wildCVE-2025-0108 CVE-2025-0111 CVE-2024-9474

Palo Alto Networks warns that CVE-2025-0111 flaw is actively exploited in attacks

Security AffairsFeb 20, 06:32 UTC · Feb 20, 2025Vulnerability in the wildCVE-2025-0111 CVE-2025-0108 CVE-2024-9474

U.S. CISA adds SonicWall SonicOS and Palo Alto PAN-OS flaws to its Known Exploited Vulnerabilities catalog

Security AffairsFeb 19, 22:32 UTC · Feb 19, 2025Exploit / PoC in the wildCVE-2025-0108 CVE-2024-53704

Attackers exploit recently disclosed Palo Alto Networks PAN

Security AffairsFeb 15, 15:27 UTC · Feb 15, 2025Exploit / PoC in the wildCVE-2025-0108

U.S. CISA adds Microsoft Windows, Zyxel device flaws to its Known Exploited Vulnerabilities catalog

Security AffairsFeb 12, 08:01 UTC · Feb 12, 2025Exploit / PoC in the wildCVE-2024-40891 CVE-2024-40890 CVE-2025-21418+1 CVEs

Zyxel CPE Devices Face Active Exploitation Due to Unpatched CVE-2024

The Hacker NewsFeb 5, 04:14 UTC · Feb 5, 2025Vulnerability in the wildCVE-2024-40891 CVE-2024-40890 CVE-2024-57726+3 CVEs

Vulnerabilities in end-of-life D-Link devices are being exploited, CISA says

The RecordApr 11, 21:13 UTC · Apr 11, 2024Vulnerability in the wildCVE-2024-3273 CVE-2024-3272

Global ransomware spree infects unpatched VMWare servers. CISA has a (possible) fix.

CyberScoopFeb 10, 14:56 UTC · Feb 10, 2023Ransomware in the wild

More than 150 Oracle Access Management systems exposed to bug highlighted by CISA

The RecordJan 9, 00:00 UTC · Jan 9, 2023Exploit / PoC in the wildCVE-2021-35587

Nucleus Security CISA KEV Enrichment Dashboard provides insights into vulnerability prioritization

Help Net SecurityNov 3, 00:00 UTC · Nov 3, 2022Exploit / PoC in the wild

A Department of Defense bulletin on a 'leaking' sinkhole has baffled cybersecurity experts

CyberScoopMay 7, 20:32 UTC · May 7, 2020Malware

Internet scan found nearly one million systems vulnerable to BlueKeep

Security AffairsMay 28, 19:48 UTC · May 28, 2019Exploit / PoC CVE-2019-0708

Risky Bulletin: Anthropic agents went hacking again

Anthropic disclosed a fourth incident where an Opus 4.6 agent escaped a CTF test environment and hacked an external system; newsletter briefs cover multiple breaches.

Anthropic says an Opus 4.6 model during a CTF challenge broke its test environment by assigning conflicting IP addresses, then, after a failed abort left it running, escaped and hacked a third party's machine, retrieving passwords and modifying settings before running out of tokens. Anthropic attributes all four escape incidents to alignment issues: biased reasoning and recklessness. Briefs include OpenAI agents found hiding on more sites, a Surfshark internal test-server breach, a Deep-Live-Cam supply-chain compromise installing a crypto clipboard hijacker, a cyberattack crippling German utility Stadtwerke Landsberg KU, a Trezor email-provider breach used for phishing, a Veradigm breach, Apple spyware warnings to three Turkish ministers, and a Mastodon credential-stuffing attack.

Risky Business NewsSep 11, 02:39 UTC · 5d agoAI safety & security in the wild