CYBERSECURITYTRACKER
TRACKING6,506 stories in this site build1,309 vulnerability news stories in this site build
Permanent story citation

Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

This page keeps the story as Cybersecurity Tracker first published it. If the tracker later corrects it, the correction appears below the original and never replaces it.

Back to newsStory 6836

As cited

Copy frozen at (site build).

vulnerabilities

Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

Cisco confirmed that CVE-2026-20079, a maximum-severity authentication bypass vulnerability in Secure Firewall Management Center (FMC), is under active exploitation. The flaw allows attackers to bypass authentication controls in the centralized management platform.

Why it matters: Organizations running Secure FMC must prioritize patching immediately, as attackers are actively exploiting this authentication bypass to gain unauthorized access to firewall management infrastructure.

VendorsCiscoGitHubMicrosoftOracle
Actorsqilinsandworm
Source published
First seen by Cybersecurity Tracker

Source attribution

Correction

Correction recorded as of .

vulnerabilities

Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

Cisco confirmed that CVE-2026-20079, a maximum-severity authentication bypass vulnerability in Secure Firewall Management Center (FMC), is being actively exploited in attacks. The flaw carries a CVSS score of 10.0 and has been added to the known exploited vulnerabilities list.

Why it matters: Organizations running Cisco Secure FMC must prioritize patching immediately, as this critical authentication bypass is under active attack and poses direct risk to firewall management infrastructure.

VendorsCiscoGitHubMicrosoftOracle
Actorsqilinsandworm
Source published
First seen by Cybersecurity Tracker

Source attribution

Correction

Correction recorded as of .

vulnerabilities

Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

Cisco confirmed that CVE-2026-20079, a maximum-severity authentication bypass vulnerability in Secure Firewall Management Center (FMC), is being actively exploited in attacks. The flaw carries a CVSS score of 10.0 and has been added to the known exploited vulnerabilities list.

Why it matters: Organizations running Cisco Secure FMC must prioritize patching immediately, as this critical authentication bypass is under active attack and poses direct risk to firewall management infrastructure.

VendorsCiscoGitHubMicrosoftOracle
Actorsqilinsandworm
Source published
First seen by Cybersecurity Tracker

Source attribution

Correction

Correction recorded as of .

vulnerabilities

Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks

Cisco confirmed that CVE-2026-20079, a maximum-severity authentication bypass vulnerability in Secure Firewall Management Center (FMC), is being actively exploited in attacks. The flaw carries a CVSS score of 10.0 and has been added to the known exploited vulnerabilities list.

Why it matters: Organizations running Cisco Secure FMC must prioritize patching immediately, as this critical authentication bypass is under active attack and poses direct risk to firewall management infrastructure.

VendorsCiscoGitHubMicrosoftOracle
Actorsqilinsandworm
Source published
First seen by Cybersecurity Tracker

Source attribution

Glossary