{"id":"CVE-2026-22790","state":"PUBLISHED","title":"EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payload","description":"EVerest is an EV charging software stack. Prior to version 2026.02.0, `HomeplugMessage::setup_payload` trusts `len` after an `assert`; in release builds the check is removed, so oversized SLAC payloads are `memcpy`'d into a ~1497-byte stack buffer, corrupting the stack and enabling remote code execution from network-provided frames. Version 2026.02.0 contains a patch.","publishedAt":"2026-03-26T14:31:44.486Z","updatedAt":"2026-03-26T15:19:36.246Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["EVerest everest-core"],"affected":[{"vendor":"EVerest","product":"everest-core","versions":[{"version":"< 2026.02.0","status":"affected"}]}],"references":["https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22790.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22790","state":"PUBLISHED","datePublished":"2026-03-26T14:31:44.486Z","dateUpdated":"2026-03-26T15:19:36.246Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-09T18:27:19.388Z"},"containers":{"cna":{"title":"EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payload","descriptions":[{"lang":"en","value":"EVerest is an EV charging software stack. Prior to version 2026.02.0, `HomeplugMessage::setup_payload` trusts `len` after an `assert`; in release builds the check is removed, so oversized SLAC payloads are `memcpy`'d into a ~1497-byte stack buffer, corrupting the stack and enabling remote code execution from network-provided frames. Version 2026.02.0 contains a patch."}],"affected":[{"vendor":"EVerest","product":"everest-core","versions":[{"version":"< 2026.02.0","status":"affected"}]}],"references":[{"url":"https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m","name":"https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","lang":"en","description":"CWE-121: Stack-based Buffer Overflow","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-26T14:31:44.486Z"},"source":{"advisory":"GHSA-wh8w-7cfc-gq7m","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-26T15:19:32.904960Z","id":"CVE-2026-22790","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-26T15:19:36.246Z"}}]}}}