CVE-2026-20316
MEDIUM CISA KEV RANSOMWARE
ACT NOW
Priority: 1.86
BB Relevance:
78/100
Published: 2026-07-29
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
None
Description
Cisco Secure Firewall Management Center (FMC) formerly known as Firepower Management Center contains a use of hard-coded password vulnerability that 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.
CISA Known Exploited Vulnerability
Vendor / Product
Cisco — Secure Firewall Management Center (FMC)
Date Added
2026-07-29
Remediation Due
2026-08-01
Ransomware Use
CONFIRMED
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-20316
Weakness Classification (1)
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| cisco | secure_firewall_management_center | 7.0.0 – 7.0.9 |
| cisco | secure_firewall_management_center | 7.2.0 – 7.2.11 |
| cisco | secure_firewall_management_center | 7.3.0 – 7.3.1.2 |
| cisco | secure_firewall_management_center | 7.4.0 – 7.4.7 |
| cisco | secure_firewall_management_center | 7.6.0 – 7.6.5 |
| cisco | secure_firewall_management_center | 7.7.0 – 7.7.12 |
| cisco | secure_firewall_management_center | 10.0.0 – 10.0.1 |
References & Advisories (2)
Vendor Advisory
US Government Resource