{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82587", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-08-30T06:09:37.015Z", "datePublished": "2026-08-30T19:00:11.238Z", "dateUpdated": "2026-08-30T19:00:11.238Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-08-30T19:00:11.238Z"}, "title": "Open5GS AMF namf-handler.c amf_namf_comm_decode_ue_mm_context_list memory corruption", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "n/a", "product": "Open5GS", "versions": [{"version": "2.7.0", "status": "affected"}, {"version": "2.7.1", "status": "affected"}, {"version": "2.7.2", "status": "affected"}, {"version": "2.7.3", "status": "affected"}, {"version": "2.7.4", "status": "affected"}, {"version": "2.7.5", "status": "affected"}, {"version": "2.7.6", "status": "affected"}, {"version": "2.7.7", "status": "affected"}, {"version": "2.8.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"], "modules": ["AMF"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function amf_namf_comm_decode_ue_mm_context_list of the file src/amf/namf-handler.c of the component AMF. This manipulation of the argument ueContext.mmContextList[*].allowedNssai causes memory corruption. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.8.0 is able to resolve this issue. Patch name: abf8a836564b966b5141110fc25ed413c4f17522. It is recommended to upgrade the affected component."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 4.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 4.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 4, "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}], "timeline": [{"time": "2026-08-30T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-08-30T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-08-30T08:15:02.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "ZiyuLin (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/397082", "name": "VDB-397082 | Open5GS AMF namf-handler.c amf_namf_comm_decode_ue_mm_context_list memory corruption", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/397082/cti", "name": "VDB-397082 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-82587", "name": "CVE-2026-82587 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/891890", "name": "Submit #891890 | Open5gs AMF v2.7.7 Denial of Service", "tags": ["third-party-advisory"]}, {"url": "https://github.com/open5gs/open5gs/issues/4398", "tags": ["exploit", "issue-tracking"]}, {"url": "https://github.com/open5gs/open5gs/commit/abf8a836564b966b5141110fc25ed413c4f17522", "tags": ["patch"]}, {"url": "https://github.com/open5gs/open5gs/releases/tag/v2.8.0", "tags": ["patch"]}, {"url": "https://github.com/open5gs/open5gs/", "tags": ["product"]}], "tags": ["x_open-source"], "x_generator": ["VulDB PVTS v202608"]}}}

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{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"], "modules": ["AMF"], "product": "Open5GS", "vendor": "n/a", "versions": [{"status": "affected", "version": "2.7.0"}, {"status": "affected", "version": "2.7.1"}, {"status": "affected", "version": "2.7.2"}, {"status": "affected", "version": "2.7.3"}, {"status": "affected", "version": "2.7.4"}, {"status": "affected", "version": "2.7.5"}, {"status": "affected", "version": "2.7.6"}, {"status": "affected", "version": "2.7.7"}, {"status": "unaffected", "version": "2.8.0"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function amf_namf_comm_decode_ue_mm_context_list of the file src/amf/namf-handler.c of the component AMF. This manipulation of the argument ueContext.mmContextList[*].allowedNssai causes memory corruption. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.8.0 is able to resolve this issue. Patch name: abf8a836564b966b5141110fc25ed413c4f17522. It is recommended to upgrade the affected component."}], "id": "CVE-2026-82587", "lastModified": "2026-08-30T19:17:30.050", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-08-30T19:17:30.050", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/open5gs/open5gs/"}, {"source": "cna@vuldb.com", "url": "https://github.com/open5gs/open5gs/commit/abf8a836564b966b5141110fc25ed413c4f17522"}, {"source": "cna@vuldb.com", "url": "https://github.com/open5gs/open5gs/issues/4398"}, {"source": "cna@vuldb.com", "url": "https://github.com/open5gs/open5gs/releases/tag/v2.8.0"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-82587"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/891890"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/397082"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/397082/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "cna@vuldb.com", "type": "Primary"}]}

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