CVE-2026-20316

Analyzed

Published: 29 Jul 2026, 16:22

Last modified:01 Aug 2026, 03:55

Vulnerability Summary

Overall Risk (default)

low

21/100

CVSS Score

5.3 MEDIUM

v3.1 (cve.org)

EPSS Score

0.79% LOW

1% probability 0.00%

KEV

Listed

CISA

1 listing

Ransomware

No reports

Public exploits

None found

Dark Web

Not detected

Timeline

29 Jul 2026, 16:22

Published

Vulnerability first disclosed

29 Jul 2026, 00:00

Added to CISA KEV

Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability

01 Aug 2026, 00:00

CISA Remediation Due

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

01 Aug 2026, 03:55

Last Modified

Vulnerability information updated

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 Metrics

v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Trends

Current EPSS score: 0.79%• Percentile: 53%

Techniques & Countermeasures

CWE-259•Use of Hard-coded Password
The product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components.

Affected Systems

cisco•cisco secure firewall management center (fmc)
7.0.0 | 7.0.0.1 | 7.0.1 | 7.0.1.1 | 7.0.2 | 7.2.0 | 7.0.2.1 | 7.0.3 | 7.2.0.1 | 7.0.4 | 7.2.1 | 7.0.5 | 7.3.0 | 7.2.2 | 7.3.1 | 7.2.3 | 7.2.3.1 | 7.2.4 | 7.0.6 | 7.2.4.1 | 7.2.5 | 7.3.1.1 | 7.4.0 | 7.0.6.1 | 7.2.5.1 | 7.4.1 | 7.2.6 | 7.4.1.1 | 7.0.6.2 | 7.2.7 | 7.2.5.2 | 7.3.1.2 | 7.2.8 | 7.6.0 | 7.4.2 | 7.2.8.1 | 7.0.6.3 | 7.4.2.1 | 7.2.9 | 7.0.7 | 7.7.0 | 7.4.2.2 | 7.2.10 | 7.6.1 | 7.4.2.3 | 7.0.8 | 7.6.2 | 7.7.10 | 7.2.10.1 | 7.0.8.1 | 7.6.2.1 | 7.2.10.2 | 7.7.10.1 | 7.4.2.4 | 7.4.3 | 7.7.11 | 7.6.4 | 10.0.0 | 7.4.4 | 7.4.5 | 7.0.9 | 7.2.11 | 7.7.12 | 7.6.5 | 7.4.6 | 10.0.1 | 7.4.7
cisco•secure_firewall_management_center
≥ 7.0.0, ≤ 7.0.9 | ≥ 7.2.0, ≤ 7.2.11 | ≥ 7.3.0, ≤ 7.3.1.2 | ≥ 7.4.0, ≤ 7.4.7 | ≥ 7.6.0, ≤ 7.6.5 | ≥ 7.7.0, ≤ 7.7.12 | ≥ 10.0.0, ≤ 10.0.1