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CVEs

CVE-2026-20079

exploited in the wild☆ pin
CVSS
10.0
Reports
14
First seen
Mar 11, 2026
Last seen
Oct 13, 2026
Affected product

Cisco Secure Firewall Management Center

Associated actors

UAT-11988 ×3UAT-12197 ×3Sandworm ×3UAT-11823 ×3Qilin ×2NightEagle ×1Optimus_Prime ×1Red Heron ×1Russian-speaking threat actor ×1Settra ×1ShinyHunters ×1Suspected Chinese-speaking threat actor ×1Suspected Russian-speaking threat actor ×1UAT-10820 ×1UNC3569 ×1Vectra ×1Black Axe ×1Void Blizzard ×1CL-CRI-1131 ×1CL-CRI-1163 ×1

Recent reports

Critical

September 2026 CVE Landscape: 94 High-Impact Vulnerabilities with Active Exploitation

Recorded Future InsiktCritical

InfraTrust report warns network management systems under active attack

Bleeping ComputerHigh

ThreatsDay: Self-Rewriting Agents, 800+ Flaws Patched, Insider SIM Swaps and 22 More New Stories

The Hacker NewsCritical

Cisco FMC Vulnerabilities Exploited by State-Sponsored and Ransomware Actors

The Hacker NewsHigh

Cisco Talos: WebDAV Infection Chain Delivers Amatera Stealer in Ukrainian Government Attack

Cisco TalosCritical

Cisco FMC flaws exploited by ransomware gang and state-sponsored hackers

Bleeping ComputerCritical

CISA Adds Exploited Cisco, Citrix, Fortinet Flaws to KEV Catalog; Sets Sept. 12 Federal Patch Deadline

The Hacker NewsCritical

Cisco confirms CVE-2026-20079 Secure FMC authentication bypass actively exploited

Bleeping ComputerCritical

Cisco Secure Firewall vulnerabilities (AV26-197) – Critical updates for FMC, ASA, FTD, SCC

Canadian Centre AlertsCritical

Active exploitation of Cisco Secure Firewall Management Center vulnerabilities

Cisco TalosHigh

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA AdvisoriesHigh

Cisco FMC Zero-Day Actively Exploited; Static Credentials Enable Unauthenticated Access

The Hacker NewsHigh

Cisco warns of FMC static credential flaw exploited in zero-day attacks

Bleeping ComputerCritical

Cisco Secure FMC Critical Vulnerabilities CVE-2026-20079 and CVE-2026-20131 Require Immediate Patching

NICS Taiwan

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