CVE-2026-20316
Cisco Secure Firewall Management Center Software Static Credential Vulnerability
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.
INFO
Published Date :
July 29, 2026, 5:16 p.m.
Last Modified :
July 29, 2026, 5:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-20316
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Cisco Secure Firewall Management Center Software.
- Remove static credentials for low-privileged accounts.
- Restrict management interface access.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-20316.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20316 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-20316
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-20316 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-20316 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 29, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Cisco', 'product': 'Cisco Secure Firewall Management Center (FMC)', 'versions': [{'status': 'affected', 'version': '7.0.0'}, {'status': 'affected', 'version': '7.0.0.1'}, {'status': 'affected', 'version': '7.0.1'}, {'status': 'affected', 'version': '7.0.1.1'}, {'status': 'affected', 'version': '7.0.2'}, {'status': 'affected', 'version': '7.2.0'}, {'status': 'affected', 'version': '7.0.2.1'}, {'status': 'affected', 'version': '7.0.3'}, {'status': 'affected', 'version': '7.2.0.1'}, {'status': 'affected', 'version': '7.0.4'}, {'status': 'affected', 'version': '7.2.1'}, {'status': 'affected', 'version': '7.0.5'}, {'status': 'affected', 'version': '7.3.0'}, {'status': 'affected', 'version': '7.2.2'}, {'status': 'affected', 'version': '7.3.1'}, {'status': 'affected', 'version': '7.2.3'}, {'status': 'affected', 'version': '7.2.3.1'}, {'status': 'affected', 'version': '7.2.4'}, {'status': 'affected', 'version': '7.0.6'}, {'status': 'affected', 'version': '7.2.4.1'}, {'status': 'affected', 'version': '7.2.5'}, {'status': 'affected', 'version': '7.3.1.1'}, {'status': 'affected', 'version': '7.4.0'}, {'status': 'affected', 'version': '7.0.6.1'}, {'status': 'affected', 'version': '7.2.5.1'}, {'status': 'affected', 'version': '7.4.1'}, {'status': 'affected', 'version': '7.2.6'}, {'status': 'affected', 'version': '7.4.1.1'}, {'status': 'affected', 'version': '7.0.6.2'}, {'status': 'affected', 'version': '7.2.7'}, {'status': 'affected', 'version': '7.2.5.2'}, {'status': 'affected', 'version': '7.3.1.2'}, {'status': 'affected', 'version': '7.2.8'}, {'status': 'affected', 'version': '7.6.0'}, {'status': 'affected', 'version': '7.4.2'}, {'status': 'affected', 'version': '7.2.8.1'}, {'status': 'affected', 'version': '7.0.6.3'}, {'status': 'affected', 'version': '7.4.2.1'}, {'status': 'affected', 'version': '7.2.9'}, {'status': 'affected', 'version': '7.0.7'}, {'status': 'affected', 'version': '7.7.0'}, {'status': 'affected', 'version': '7.4.2.2'}, {'status': 'affected', 'version': '7.2.10'}, {'status': 'affected', 'version': '7.6.1'}, {'status': 'affected', 'version': '7.4.2.3'}, {'status': 'affected', 'version': '7.0.8'}, {'status': 'affected', 'version': '7.6.2'}, {'status': 'affected', 'version': '7.7.10'}, {'status': 'affected', 'version': '7.2.10.1'}, {'status': 'affected', 'version': '7.0.8.1'}, {'status': 'affected', 'version': '7.6.2.1'}, {'status': 'affected', 'version': '7.2.10.2'}, {'status': 'affected', 'version': '7.7.10.1'}, {'status': 'affected', 'version': '7.4.2.4'}, {'status': 'affected', 'version': '7.4.3'}, {'status': 'affected', 'version': '7.7.11'}, {'status': 'affected', 'version': '7.6.4'}, {'status': 'affected', 'version': '10.0.0'}, {'status': 'affected', 'version': '7.4.4'}, {'status': 'affected', 'version': '7.4.5'}, {'status': 'affected', 'version': '7.0.9'}, {'status': 'affected', 'version': '7.2.11'}, {'status': 'affected', 'version': '7.7.12'}, {'status': 'affected', 'version': '7.6.5'}, {'status': 'affected', 'version': '7.4.6'}, {'status': 'affected', 'version': '10.0.1'}, {'status': 'affected', 'version': '7.4.7'}], 'defaultStatus': 'unknown'}] Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-259 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 29, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-29T16:42:10.550297Z'}