{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116543","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-26T14:30:58.865Z","datePublished":"2026-10-26T14:59:42.212Z","dateUpdated":"2026-10-26T14:59:42.212Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-26T14:59:42.212Z"},"datePublic":"2026-09-25T00:00:00.000Z","title":"Open5GS 1.3.0 through 2.8.0 Heap Out-of-Bounds Write via SBI Multipart Parser","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Out-of-bounds Write","cweId":"CWE-787","type":"CWE"}]}],"affected":[{"vendor":"open5gs","product":"open5gs","defaultStatus":"unaffected","repo":"https://github.com/open5gs/open5gs","versions":[{"version":"1.3.0","lessThanOrEqual":"2.8.0","status":"affected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*","versionStartIncluding":"1.3.0","versionEndIncluding":"2.8.0"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-25v2-v588-jq8g)"},{"url":"https://github.com/open5gs/open5gs/commit/6820c2743b5b5e126e3755d2f92dae2b236732df","tags":["patch"],"name":"Patch Commit"},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/message.c#L3372","tags":["technical-description"]},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/contrib/multipart_parser.c#L260","tags":["technical-description"]},{"url":"https://github.com/open5gs/open5gs","tags":["product"]},{"name":"VulnCheck Advisory: Open5GS 1.3.0 through 2.8.0 Heap Out-of-Bounds Write via SBI Multipart Parser","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"}],"credits":[{"lang":"en","value":"Eun0us / Espilon","type":"finder"},{"lang":"en","value":"VulnCheck","type":"coordinator"}],"x_generator":{"engine":"vulncheck-endgame"}}}}