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CategoryAll Malware 15 Threat actor 14 Phishing & fraud 14 Exploit / PoC 13 Vulnerability 11 AI safety & security 11 Industry 10 Research 7 Data breach 4 Tools 4 Advisory 3 Ransomware 2 AI tools & infra 1 AI industry 1

SeverityAll critical 7 high 45 medium 30 low 1 info 27

Weekly Cybersecurity Newsletter Bulletin – Microsoft 0-day, FortiOS, PAN-OS Flaw, Revolut Data Breach, and 20+ Stories

Weekly roundup: Microsoft patches 973 flaws including two actively exploited zero-days; FortiOS CAPWAP flaw deploys PivotC2 RAT; PAN-OS root RCE disclosed.

Microsoft's September 2026 Patch Tuesday fixed 973 vulnerabilities, including two zero-days under active exploitation: CVE-2026-85880 (Windows ALPC) and CVE-2026-81963 (Windows Update Stack), both elevation-of-privilege bugs. SOCRadar reported active exploitation of CVE-2025-25249 (CVSS 9.8) in FortiOS CAPWAP, deploying a Node.js RAT called PivotC2 that exfiltrates Exchange mailboxes to Wasabi cloud storage; 178 devices were compromised out of 30,000 scanned IPs, attributed to a Russian-speaking financially motivated group. Palo Alto disclosed CVE-2026-0310, a 9.2-rated buffer overflow enabling root code execution on PA-Series firewalls, and Fortinet disclosed CVE-2026-84393, a ZTNA certificate validation MITM flaw. Cyera also revealed CVE-2026-6471 ('PostGREShell'), a 12-year-old PostgreSQL logical-decoding flaw allowing code execution via REPLICATION-privileged accounts.

Cyber Security NewsSep 14, 03:10 UTC · 3d agoExploit / PoC in the wildCVE-2026-85880 CVE-2026-81963 CVE-2025-25249+3 CVEs3

The Apple Security Update Review for September 2026

Apple's September 2026 updates patch 45+ flaws, including a 9.8 Screen Sharing authentication bypass (CVE-2026-65400) already listed in CISA's KEV.

ZDI's review of Apple's September 2026 security updates catalogs dozens of CVEs across macOS, iOS, iPadOS, watchOS and other platforms. CVE-2026-65400 (CVSS 9.8) lets a network attacker authenticate to Screen Sharing Server without valid credentials and is flagged as KEV, while CVE-2026-65414 (CVSS 9.8) enables remote code execution via Bluetooth. The set also includes 8.8-rated memory corruption flaws in WebKit, WebRTC, CUPS, ImageIO and the kernel, plus sandbox escapes, privilege escalations to root, and arbitrary code execution via crafted files.

Zero Day Initiative BlogSep 16, 19:58 UTC · 14h agoVulnerability in the wildCVE-2026-65400 CVE-2026-65414 CVE-2026-43692+27 CVEs

CVE-2026-85706: Critical GitLab Path Traversal Exploited in the Wild

CVE-2026-85706, a CVSS 10.0 unauthenticated path traversal in GitLab CE/EE, is actively exploited and was added to CISA's KEV catalog.

GitLab patched CVE-2026-85706, a critical path traversal (CWE-22) in the repository commits API scoring CVSSv3.1 10.0, allowing unauthenticated arbitrary file reads on affected self-managed servers under certain conditions. CISA added it to the KEV catalog on September 11, 2026, citing active exploitation, with a September 14 remediation deadline and BOD 26-04 forensic triage requirements. Fixed versions are 19.1.8, 19.2.6, and 19.3.2; the release also fixes 17 other vulnerabilities including CVE-2026-87719, a CVSS 9.9 insecure deserialization flaw in GitLab EE.

Rapid7 Blogupdated Sep 15, 00:52 UTC · 2d agofirst Sep 14, 10:02 UTC · 3d agoExploit / PoC in the wild 18 sources CVE-2026-85706 CVE-2026-877192

Cisco FMC Flaws Exploited to Steal Credentials and Deploy Qilin Ransomware

Three threat clusters including a Sandworm-linked group and Qilin ransomware operators exploit Cisco FMC flaws CVE-2026-20079 and CVE-2026-20316.

Cisco Talos identified three clusters of post-compromise activity exploiting CVE-2026-20079 (CVSS 10.0, unauthenticated web-interface authentication bypass enabling root code execution) and CVE-2026-20316 (CVSS 5.3, low-privilege login exposing sensitive data) in Secure Firewall Management Center. UAT-12197 deployed JSP web shells and a JAR-based command executor to query internal databases for credentials; UAT-11823 used a Netcat reverse shell, configuration-harvesting scripts and a Cyclops Blink variant previously attributed to Russia's Sandworm; UAT-11988 used living-off-the-land FMC tooling for reconnaissance before deploying Qilin ransomware. CISA added CVE-2026-20079 to its KEV catalog, requiring FCEB agencies to patch by September 12, 2026; CVE-2026-20316 was added in late July 2026.

The Hacker Newsupdated 09:33 UTC · 1h agofirst Sep 11, 06:19 UTC · 6d agoExploit / PoC in the wild 14 sources CVE-2026-20079 CVE-2026-20316

Cisco Secure Email Gateway Flaw Exploited in the Wild, Enables Root Command Execution

Cisco warns CVE-2026-76461 in Secure Email Gateway AsyncOS is actively exploited, letting unauthenticated attackers run root commands via crafted emails.

Cisco disclosed CVE-2026-76461, a CVSS 9.8 flaw in AsyncOS for Cisco Secure Email Gateway caused by insufficient validation in email parsing, allowing unauthenticated remote attackers to execute arbitrary SQL statements leading to root command execution. Active exploitation began in September 2026, and CISA added the flaw to its KEV catalog, requiring FCEB agencies to patch by September 17, 2026. Fixes are available in AsyncOS 15.5.5-0141, 16.0.4-302, and 16.5.0-780, with no workarounds. Cisco also contacted Secure Email Cloud customers where malicious activity was detected, and the article separately notes large-scale credential attacks on Fortinet VPN appliances generating tens of millions of authentication failures.

The Hacker Newsupdated Sep 16, 13:57 UTC · 20h agofirst Sep 15, 06:11 UTC · 2d agoExploit / PoC in the wild 17 sources CVE-2026-76461

Week in review: Linux rootkit deployed on F5 BIG-IP APM devices, Cisco FMC bugs exploited

Weekly roundup: Cisco FMC and N-able N-central zero-days exploited in the wild, MikroTik RouterOS hijacks, Microsoft Patch Tuesday ships two exploited zero-days.

State-sponsored and financially-motivated attackers are actively exploiting CVE-2026-20079, a critical authentication bypass in Cisco Secure Firewall Management Center (FMC), alongside CVE-2026-20316. N-able issued an emergency hotfix for CVE-2026-86218, a critical pre-auth RCE in the N-central RMM platform exploited in the wild. CERT Polska disclosed six RouterOS vulnerabilities being chained to hijack internet-exposed MikroTik devices. Microsoft's September 2026 Patch Tuesday shipped a record patch count including two zero-days, while roughly 67,000 Trezor customers faced phishing after a shipping-partner breach and researchers privately disclosed a zero-click WeChat worm to Tencent.

Help Net SecuritySep 13, 08:00 UTC · 4d agoExploit / PoC in the wildCVE-2026-20079 CVE-2026-20316 CVE-2026-862182· 1 read