{"id":"CVE-2025-23369","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-23369","generatedAt":"2026-10-28T07:26:04.653Z","title":"An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users.","description":"An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users.  Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were not impacted. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.12.14, 3.13.10, 3.14.7, 3.15.2, and 3.16.0. This vulnerability was reported via the GitHub Bug Bounty program.","published":"2025-01-21T19:15:12.000Z","lastModified":"2026-06-17T08:53:52.000Z","status":"Analyzed","sourceIdentifier":"product-cna@github.com","cvss":{"version":"4.0","score":7.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-347"],"affected":["github/enterprise server"],"epss":{"score":0.01624,"percentile":0.75999,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.14","tags":["Release Notes"],"source":"product-cna@github.com"},{"url":"https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.10","tags":["Release Notes"],"source":"product-cna@github.com"},{"url":"https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.7","tags":["Release Notes"],"source":"product-cna@github.com"},{"url":"https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.2","tags":["Release Notes"],"source":"product-cna@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-23369","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}