CVE-2026-20316
KEV: known exploited SSVC: activeCisco Secure Firewall Management Center Software Static Credential Vulnerability
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack conditions and impact
Derived from the CNA (via NVD) CVSS 3.1 vectorThis vulnerability may be exploitable over the internet without authentication or user interaction.
| Metric | Value | Meaning |
|---|---|---|
| Attack vector AV | N | Network |
| Attack complexity AC | L | Low (easy) |
| Privileges required PR | N | None |
| User interaction UI | N | None |
| Scope S | U | Unchanged |
| Confidentiality C | L | Low |
| Integrity I | N | None |
| Availability A | N | None |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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.
CISA KEV entry
Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability — Cisco / Secure Firewall Management Center (FMC)
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.
Required action: 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.
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
CVSS assessments
| Provider | Version | Score | Vector |
|---|---|---|---|
| NVD / [email protected] (Secondary) | 3.1 | 5.3 MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| CNA / cisco | 3.1 | 5.3 MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Secure Firewall Management Center (FMC) | affected: 7.0.0 affected: 7.0.0.1 affected: 7.0.1 affected: 7.0.1.1 affected: 7.0.2 affected: 7.2.0 affected: 7.0.2.1 affected: 7.0.3 affected: 7.2.0.1 affected: 7.0.4 affected: 7.2.1 affected: 7.0.5 affected: 7.3.0 affected: 7.2.2 affected: 7.3.1 affected: 7.2.3 affected: 7.2.3.1 affected: 7.2.4 affected: 7.0.6 affected: 7.2.4.1 affected: 7.2.5 affected: 7.3.1.1 affected: 7.4.0 affected: 7.0.6.1 affected: 7.2.5.1 affected: 7.4.1 affected: 7.2.6 affected: 7.4.1.1 affected: 7.0.6.2 affected: 7.2.7 … default: unknown |
NVD CPE (7)
Show CPE list
| Vendor | Product | Range | CPE |
|---|---|---|---|
| cisco | secure_firewall_management_center | >= 7.0.0, <= 7.0.9 | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | >= 7.2.0, <= 7.2.11 | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | >= 7.3.0, <= 7.3.1.2 | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | >= 7.4.0, <= 7.4.7 | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | >= 7.6.0, <= 7.6.5 | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | >= 7.7.0, <= 7.7.12 | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | >= 10.0.0, <= 10.0.1 | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
Linux distribution status
References (2)
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh NVD, CNA Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20316 NVD, ADP CISA-ADP US Government Resourcegovernment-resource