CVE-2026-20316
Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability - [Actively Exploited]
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 :
Aug. 1, 2026, 5:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
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.
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.
Unknown
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
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] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
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 | Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20316 | US Government Resource |
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 Hacker News
Cisco Patches 12 SD-WAN and IOS XE Flaws, Including Three 9.8 CVSS Score Bugs
Cisco has rolled out updates to address multiple critical security vulnerabilities impacting Catalyst SD-WAN and IOS XE Software as part of a comprehensive internal security review. The security issue ... Read more
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The Cyber Express
CVE-2026-20316 Zero-Day Actively Exploited, Cisco Releases Fix
Cisco has released security updates for an actively exploited zero-day vulnerability, CVE-2026-20316, affecting Cisco Secure FMC (Secure Firewall Management Center) software. The flaw, disclosed on Ju ... Read more
-
security.nl
Cisco meldt misbruik van hardcoded wachtwoord in firewall-beheersoftware
Aanvallers maken actief misbruik van een hardcoded wachtwoord in het Cisco Secure Firewall Management Center (FMC), software voor het beheren van firewalls, zo waarschuwt Cisco. Er zijn updates uitgeb ... Read more
-
The Hacker News
Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive Data
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a newly disclosed security flaw impacting Cisco Secure Firewall Management Center (FMC) Software to its Known Exploi ... Read more
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TheCyberThrone
CISA Adds Cisco Secure FMC Vulnerability to KEV
July 30, 2026The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical vulnerability affecting Cisco Secure Firewall Management Center (FMC) to its Known Exploited Vulnerab ... Read more
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.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 01, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-31T17:15:02.964102Z'} {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-29T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 31, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-30T03:55:25.997164Z'} {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-31T17:15:02.964102Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 31, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-29T00:00:00+00:00'} {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-30T03:55:25.997164Z'} -
Modified Analysis by [email protected]
Jul. 30, 2026
Action Type Old Value New Value Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20316 Types: US Government Resource -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 30, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-29T19:08:35.311158Z'} {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-29T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 29, 2026
Action Type Old Value New Value Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20316 Changed 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'} {'id': 'CVE-2026-20316', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-29T19:08:35.311158Z'} -
Initial Analysis by [email protected]
Jul. 29, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* versions from (including) 7.3.0 up to (including) 7.3.1.2 *cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (including) 7.0.9 *cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* versions from (including) 7.2.0 up to (including) 7.2.11 *cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (including) 7.4.7 *cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (including) 10.0.1 *cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* versions from (including) 7.6.0 up to (including) 7.6.5 *cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* versions from (including) 7.7.0 up to (including) 7.7.12 Added Reference Type Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh Types: Vendor Advisory -
CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725
Jul. 29, 2026
Action Type Old Value New Value Added Date Added 2026-07-29 Added Due Date 2026-07-29 Added Required Action 2026-07-29 Added Vulnerability Name 2026-07-29 -
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'}