{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2026-20340", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-20340", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-09-16T20:10:07.218Z", "updatedAt": "2026-09-18T03:56:07.878Z", "importedAt": "2026-10-24T01:57:55.771Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "Cisco Secure Firewall Management Center Software Deserialization Arbitrary Root Command Execution Vulnerability", "summary": "A vulnerability in Cisco Secure FMC Software could allow an authenticated, remote attacker to execute arbitrary commands at the root privilege level.\r\n\r\nThis vulnerability is due to unsecured deserialization of web-management user-controlled data. An attacker could exploit this vulnerability by authenticating to the device and sending a crafted HTTP payload. A successful exploit could allow the attacker to save the crafted payload and then execute it on the underlying operating system as root.\r\nTo exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Security Analyst (read-only).", "affected": [ { "vendor": "Cisco", "product": "Cisco Secure Firewall Management Center (FMC)", "defaultStatus": "unknown", "versions": [ { "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": "7.6.3", "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", "status": "affected" } ] } ] } } }