Summary
generated automatically from NVD dataCisco Secure Firewall Management Center (FMC) Software contains static credentials for a low-privileged account (CWE-259) in its web interface. An unauthenticated remote attacker can use that account to log in and read sensitive data as the low-privileged user. It scores CVSS 5.3 (MEDIUM), though Cisco rates its impact High because it can be chained with other FMC flaws to elevate privileges. The flaw is listed in CISA's KEV catalog, with known use in ransomware campaigns.
NVD 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.
⚠️ Actively exploited — CISA KEV
This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-07-29. It is confirmed exploited in the wild and must be patched as a priority.
Remediation deadline (US federal agencies): 2026-08-01
Used in known ransomware campaigns.
EPSS · FIRST.org
35.1%probability of exploitation in the next 30 days
Higher than 98% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 29 juil. 2026
- Updated
- 16 sept. 2026
- Status
- Analyzed
- Source
- psirt@cisco.com
Affected products
Weaknesses (CWE)
References (2)
Similar CVEs
Other vulnerabilities of type CWE-259
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