{"affected":[{"defaultStatus":"unaffected","product":"open5gs","source":"CNA: VulnCheck","vendor":"open5gs","versions":[{"lessThanOrEqual":"2.8.0","status":"affected","version":"1.3.0","versionType":"semver"}]}],"cveId":"CVE-2026-116543","cwes":["CWE-787"],"description":"Open5GS 1.3.0 through 2.8.0 contains a heap out-of-bounds write vulnerability in parse_multipart() that allows unauthenticated attackers to corrupt memory by supplying an empty multipart boundary. Attackers can send a single crafted multipart/related request to the SBI interface of any network function, overflowing the lookbehind buffer and crashing it.","epss":{"date":"2026-11-02","percentile":0.3277,"score":0.00387},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g"}],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.5,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793641373156,"publishedAt":1793026782212,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/open5gs/open5gs/commit/6820c2743b5b5e126e3755d2f92dae2b236732df"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/message.c#L3372"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/contrib/multipart_parser.c#L260"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/open5gs/open5gs"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/open5gs-1.3.0-through-2.8.0-heap-out-of-bounds-write-via-sbi-multipart-parser"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/open5gs/open5gs/commit/6820c2743b5b5e126e3755d2f92dae2b236732df"}],"revision":"1ac7f46e8f3d31b6b651dc9ef20e5b28a868de5bc52dc12ff1ba056527b7f154","sources":[{"modifiedAt":1793641373156,"name":"CNA: VulnCheck","retrievedAt":1793642954385,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116543"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793642961019,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116543"}],"ssvc":{"assessedAt":1793641331338,"automatable":"yes","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Open5GS 1.3.0 through 2.8.0 Heap Out-of-Bounds Write via SBI Multipart Parser","updatedAt":1793642961019}