CVE-2026-20242
ZDI-26-709: Cisco Secure Firewall Management Center CommandSinkRmi Deserialization of Untrusted Data Remote Code Execution Vulnerability
Published Sep 16, 2026
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cisco Secure Firewall Management Center. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-20242.
Timeline
Detection, updates, and resolution for this record.
Sep 16, 2026 · Catalog
Detected
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cisco Secure Firewall Management Center. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-20242.
Sources
- CVE.orgCVE-2026-20242
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-20242
30-day exploitation probability 0.6%
first.org - Zero Day InitiativeZDI-26-709
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cisco Secure Firewall Management Center. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-20242.
zerodayinitiative.com