{"id":"CVE-2026-78156","title":"A security vulnerability has been detected in Open5GS 2.8.0","summary":"A security vulnerability has been detected in Open5GS 2.8.0. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipula…","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","cwe":["CWE-119","CWE-122"],"published":"2026-08-24","updated":"2026-10-14","sourceUpdated":"2026-10-14T13:10:00.187","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-78156","references":[{"url":"https://github.com/open5gs/open5gs/","label":"cna@vuldb.com"},{"url":"https://github.com/open5gs/open5gs/commit/a9c82ee0b590d76a581b0580cb46b598984e2392","label":"cna@vuldb.com"},{"url":"https://github.com/open5gs/open5gs/issues/4661","label":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-78156","label":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/882951","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/394539","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/394539/cti","label":"cna@vuldb.com"}],"tags":["nvd"],"epss":0.00561,"epssPercentile":0.45166,"ingestedAt":"2026-10-14T13:30:58.553Z","slug":"CVE-2026-78156","body":"## Overview\n\nA security vulnerability has been detected in Open5GS 2.8.0. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipulation of the argument Visited-PLMN-Id leads to heap-based buffer overflow. The attack may be performed from remote. The name of the patch is a9c82ee0b590d76a581b0580cb46b598984e2392. A patch should be applied to remediate this issue.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}