CVE-2026-20131
CVE-2026-20131: 1 tracked advisory record across Cisco. CISA KEV listed; exploitation observed. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Cisco
1 advisory- Advisory severityCritical10.0
Critical [CVE-2026-20131] Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability
cisco-sa-fmc-rce-NKhnULJhSource published Source updated
A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Java byte stream. An attacker could exploit this vulnerability by sending a crafted serialized Java object to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code on the device and elevate privileges to root. Note: If the FMC…
- Affected products in this advisory
- Cisco Secure Firewall Management Center (FMC)
- Source-reported affected versions
- Scope: This vulnerability affects Cisco Secure FMC Software and Cisco Security Cloud Control (SCC) Firewall Management, regardless of device configuration.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
- Workarounds
- There are no workarounds that address this vulnerability.
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