VulnRadar

Data against noise.

Built with NaN
Page generated: 11 Nov 2026, 11:43 UTC
← Dashboard

CVE-2026-20316

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems. This vulnerability i…

Read full description
A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems. This vulnerability is due to the presence of static user credentials for a low-privileged account. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and access sensitive data as the low-privileged user.  Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced.   Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that this vulnerability can be used with other Cisco Secure FMC Software vulnerabilities to elevate privileges.
CVSS 5.3 (MEDIUM) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.0/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 5.3: +0.79
  • Fresh EPSS: 35.10%: +0.18

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

Sources: 20 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

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
Forkast News
Press · 12 Sep 2026, 07:00 · Three Strikes on the Firewall Management Plane: Cisco FMC Logs Its Third CISA KEV of 2026 - Forkast News
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/
The Hacker News
Press · 11 Sep 2026, 07:00 · Cisco FMC Flaws Exploited to Steal Credentials and Deploy Qilin Ransomware - The Hacker News
Security Affairs
Press · 11 Sep 2026, 07:00 · Attackers Exploit Critical Cisco FMC Flaw to deploy Qilin ransomware - Security Affairs
See all 20 source documents
SecurityWeek
Press · 10 Sep 2026, 07:00 · Organizations Warned of Cisco Secure FMC Exploitation - SecurityWeek
BleepingComputer
Press · 10 Sep 2026, 07:00 · Cisco FMC flaws exploited by ransomware gang, state-sponsored hackers - BleepingComputer
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
The Hacker News
Press · 06 Aug 2026, 07:00 · Cisco Patches 12 SD-WAN and IOS XE Flaws, Including Three 9.9 CVSS Score Bugs - The Hacker News
SecurityWeek
Press · 30 Jul 2026, 07:00 · Cisco Secure FMC Zero-Day Exploited in the Wild - SecurityWeek
LinkedIn
Press · 30 Jul 2026, 07:00 · CISA Orders Emergency Patching For Cisco FMC Zero-Day Exploited Through Static Credentials - LinkedIn
The Hacker News
Press · 30 Jul 2026, 07:00 · Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive Data - The Hacker News
SOC Prime
Press · 30 Jul 2026, 07:00 · CVE-2026-20316: Cisco FMC Zero-Day Exploited - SOC Prime
CyberSecurityNews
Press · 30 Jul 2026, 07:00 · Cisco Firewall Management Center 0-Day Actively Exploited to Access Sensitive Data - CyberSecurityNews
Security Affairs
Press · 30 Jul 2026, 07:00 · U.S. CISA adds a Cisco Secure Firewall Management Center (FMC) flaw to its Known Exploited Vulnerabilities ... - Security Affairs
Help Net Security
Press · 30 Jul 2026, 07:00 · Cisco FMC static credentials exploited by attackers (CVE-2026-20316) - Help Net Security
BleepingComputer
Press · 29 Jul 2026, 07:00 · Cisco warns of FMC static credential flaw exploited in zero-day attacks - BleepingComputer

Score evolution

● Hype   ● Reality

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

First record: hype 0.0 · reality 8.0 (2026-11-02 15:14). The curve appears once the score changes.

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 5.3; EPSS 35.1%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 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: 2026-11-05 14:00:01.230559+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Added to the CISA KEV catalog
29 Jul 2026, 00:00
First press mention
29 Jul 2026, 07:00
Published
29 Jul 2026, 16:22
Latest press mention
17 Sep 2026, 07:00
Score calculated
05 Nov 2026, 14:00
Source: CVE List V5 · CISA KEV · FIRST EPSS · GitHub · RSSVulnRadar