{"id":"CVE-2025-42959","aliases":["EUVD-2025-20350","GHSA-j74w-g6f3-9wr9"],"status":"published","title":"Missing Authentication check after implementation of SAP Security Note 3007182 and 3537476","description":"An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00562,"percentile":0.47071,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-308"],"published":"2025-07-08T00:35:03Z","modified":"2026-06-17T09:23:18Z","products":[{"vendor":"sap_se","product":"sap netweaver abap server and abap platform"}],"references":[{"url":"https://me.sap.com/notes/3600846"},{"url":"https://url.sap/sapsecuritypatchday"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-42959"},{"url":"https://github.com/advisories/GHSA-j74w-g6f3-9wr9"}],"sources":{"cve":[{"id":"CVE-2025-42959","title":"Missing Authentication check after implementation of SAP Security Note 3007182 and 3537476","description":"An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.","status":"published","published":"2025-07-08T00:35:03.181Z","modified":"2026-02-26T18:27:53.365Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-308"],"updated_at":"2026-11-02T14:32:30.9782Z"}],"euvd":[{"id":"EUVD-2025-20350","description":"An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.","status":"published","published":"2025-07-08T00:35:03Z","modified":"2026-02-26T18:27:53Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:48:18.130322Z"}],"ghsa":[{"id":"GHSA-j74w-g6f3-9wr9","title":"An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code ...","description":"An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.","status":"published","published":"2025-07-08T03:30:59Z","modified":"2025-07-08T03:31:02Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-308"],"updated_at":"2026-11-02T15:02:56.056966Z"}],"nvd":[{"id":"CVE-2025-42959","description":"An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.","status":"published","published":"2025-07-08T01:15:22.477Z","modified":"2026-06-17T09:23:18.067Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-308"],"updated_at":"2026-11-02T14:11:16.997062Z"}]}}