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Page generated: 08 Nov 2026, 11:47 UTC
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CVE-2026-20079

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system.  T…

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A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system.  This vulnerability is due to an improper system process that is created at boot time. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute a variety of scripts and commands that allow root access to the device. 
CVSS 10.0 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.8/10
REALITY · THREAT PRIORITY
8.9/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 10: +1.50
  • Fresh EPSS: 88.66%: +0.44

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 25 documents and public datasets.

Hype components

Headline sample (25%)
20/100
Press, 30 days (60%)
5/100
Grounded branding (15%)
0/100
HYPE TOTAL8/100

Sources and documents

Recorded Future
Press · 13 Oct 2026, 07:00 · 2026年9月 CVEの概況​​ - Recorded Future
Forkast News
Press · 07 Oct 2026, 07:00 · Cisco Firewall Management Center Has Two CVSS 10.0 Unauthenticated RCEs — Interlock Ransomware Exploited One as Zero-Day - Forkast News
Rescana
Press · 17 Sep 2026, 07:00 · Active Exploitation Alert: Cisco Secure Firewall Management Center Authentication Bypass (CVE-2026-20079) Added to CISA KEV — Unauthenticated Root on FMC - Rescana
Recorded Future
Press · 13 Sep 2026, 07:00 · September 2026 CVE Landscape - Recorded Future
Security Affairs
Press · 11 Sep 2026, 07:00 · Attackers Exploit Critical Cisco FMC Flaw to deploy Qilin ransomware - Security Affairs
See all 25 source documents
https://tech-insider.org/
Press · 11 Sep 2026, 07:00 · Cisco FMC Bug Hits CVSS 10.0, 700 Boxes Exposed [2026] - https://tech-insider.org/
Resecurity
Press · 11 Sep 2026, 07:00 · CISA KEV Alert: Cisco, Citrix, and Fortinet Vulnerabilities Under Active Exploitation - Resecurity
The Hacker News
Press · 11 Sep 2026, 07:00 · Cisco FMC Flaws Exploited to Steal Credentials and Deploy Qilin Ransomware - The Hacker News
BleepingComputer
Press · 10 Sep 2026, 07:00 · Cisco FMC flaws exploited by ransomware gang, state-sponsored hackers - BleepingComputer
SOCRadar
Press · 10 Sep 2026, 07:00 · Cisco FMC CVE-2026-20079 Actively Exploited - SOCRadar
The Hacker News
Press · 10 Sep 2026, 07:00 · CISA Flags Exploited Cisco, Citrix, Fortinet Flaws, Sets Sept. 12 Federal Patch Deadline - The Hacker News
SecurityWeek
Press · 10 Sep 2026, 07:00 · Organizations Warned of Cisco Secure FMC Exploitation - SecurityWeek
Help Net Security
Press · 10 Sep 2026, 07:00 · Cisco FMC bugs exploited by nation-state and ransomware actors (CVE-2026-20079, CVE-2026-20316) - Help Net Security
Cisco Talos Blog
Press · 09 Sep 2026, 07:00 · Active exploitation of Cisco Secure Firewall Management Center vulnerabilities - Cisco Talos Blog
BleepingComputer
Press · 09 Sep 2026, 07:00 · Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks - BleepingComputer
Arctic Wolf
Press · 17 Aug 2026, 21:17 · CVE-2026-20316, CVE-2026-20079: Active Exploitation of Cisco Secure Firewall Management Center Zero-Day - Arctic Wolf
SOC Prime
Press · 30 Jul 2026, 07:00 · CVE-2026-20316: Cisco FMC Zero-Day Exploited - SOC Prime
The Hacker News
Press · 30 Jul 2026, 07:00 · Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive Data - The Hacker News
Help Net Security
Press · 30 Jul 2026, 07:00 · Cisco FMC static credentials exploited by attackers (CVE-2026-20316) - Help Net Security
LinkedIn
Press · 30 Jul 2026, 07:00 · CISA Orders Emergency Patching For Cisco FMC Zero-Day Exploited Through Static Credentials - LinkedIn
BleepingComputer
Press · 29 Jul 2026, 07:00 · Cisco warns of FMC static credential flaw exploited in zero-day attacks - BleepingComputer
The Hacker News
Press · 05 Mar 2026, 08:00 · Cisco Confirms Active Exploitation of Two Catalyst SD-WAN Manager Vulnerabilities - The Hacker News
SecurityWeek
Press · 05 Mar 2026, 08:00 · Cisco Patches Critical Vulnerabilities in Enterprise Networking Products - SecurityWeek
Arctic Wolf
Press · 04 Mar 2026, 08:00 · Recommendation for CVE-2026-20079 & CVE-2026-20131 - Arctic Wolf
Security Affairs
Press · 04 Mar 2026, 08:00 · Cisco fixes maximum-severity Secure FMC bugs threatening firewall security - Security Affairs

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

024681002 Nov 2026 · OBSERVED EXPLOITATION + LOWER RECENT ATTENTIONHype 1.1Reality 8.907 Nov 2026 · OBSERVED EXPLOITATION + LOWER RECENT ATTENTIONHype 0.8Reality 8.9Nov 2Nov 7

━ Hype Score (Perceived)  ━ Reality threat priority. Definition changes are not new attacks.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 10; EPSS 88.7%
Attention, last 30 days
1 distinct story titles; 1 press documents; 1 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-07 20:42:32.005177+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
04 Mar 2026, 08:00
Published
04 Mar 2026, 17:17
Added to the CISA KEV catalog
09 Sep 2026, 00:00
Latest press mention
13 Oct 2026, 07:00
Score calculated
07 Nov 2026, 20:42
Source: CVE List V5 · CISA KEV · FIRST EPSS · GitHub · RSSVulnRadar