{"id":"CVE-2025-48057","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-48057","generatedAt":"2026-10-28T02:20:36.484Z","title":"This allows an attacker to send a malicious certificate request that is then treated as a renewal of an already existing certificate, resulting in the attacker obtaining a valid certificate that can be used to impersonate trusted nodes.","description":"Icinga 2 is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. Prior to versions 2.12.12, 2.13.12, and 2.14.6, the VerifyCertificate() function can be tricked into incorrectly treating certificates as valid. This allows an attacker to send a malicious certificate request that is then treated as a renewal of an already existing certificate, resulting in the attacker obtaining a valid certificate that can be used to impersonate trusted nodes. This only occurs when Icinga 2 is built with OpenSSL older than version 1.1.0. This issue has been patched in versions 2.12.12, 2.13.12, and 2.14.6.","published":"2025-05-27T17:15:26.000Z","lastModified":"2026-06-17T09:29:05.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-296"],"affected":["icinga/icinga"],"epss":{"score":0.00462,"percentile":0.39799,"date":"2026-10-26","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 (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/Icinga/icinga2/commit/34c93a2542bbe4e9886d15bc17ec929ead1aa152","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/Icinga/icinga2/commit/4023128be42b18a011dda71ddee9ca79955b89cb","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/Icinga/icinga2/commit/60f75f4a3d5cbb234eb3694ba7e9076a1a5b8776","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/Icinga/icinga2/commit/9ad5683aab9eb392c6737ff46c830a945c9e240f","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/Icinga/icinga2/commit/9b2c05d0cc09210bdeade77cf9a73859250fc48d","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/Icinga/icinga2/security/advisories/GHSA-7vcf-f5v9-3wr6","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-48057","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."}