{"id":"CVE-2026-85454","state":"PUBLISHED","title":"MOOS core-moos through 10.4.0 Off-by-One Buffer Overflow in Serial Telegram Handling","description":"MOOS core-moos through 10.4.0 contains a buffer overflow vulnerability in CMOOSSerialPort::GetTelegram() that writes a NUL terminator one byte past the serial telegram stack buffer. Attackers controlling the serial line can send a full-length telegram to trigger the off-by-one write, corrupting the stack and potentially enabling code execution.","publishedAt":"2026-09-03T22:38:41.091Z","updatedAt":"2026-09-08T13:57:18.382Z","severity":{"score":5.2,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["themoos core-moos"],"affected":[{"vendor":"themoos","product":"core-moos","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"10.4.0","versionType":"custom"}]}],"references":["https://github.com/themoos/core-moos/pull/73","https://github.com/themoos/core-moos/commit/befb04df2039d0080715ea35f56268092db4ec0f","https://github.com/themoos/core-moos","https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/Utils/MOOSSerialPort.cpp#L595","https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-off-by-one-buffer-overflow-in-serial-telegram-handling"],"weaknesses":["CWE-193"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/85xxx/CVE-2026-85454.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-85454","state":"PUBLISHED","datePublished":"2026-09-03T22:38:41.091Z","dateUpdated":"2026-09-08T13:57:18.382Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-03T19:51:02.691Z"},"containers":{"cna":{"title":"MOOS core-moos through 10.4.0 Off-by-One Buffer Overflow in Serial Telegram Handling","descriptions":[{"lang":"en","value":"MOOS core-moos through 10.4.0 contains a buffer overflow vulnerability in CMOOSSerialPort::GetTelegram() that writes a NUL terminator one byte past the serial telegram stack buffer. Attackers controlling the serial line can send a full-length telegram to trigger the off-by-one write, corrupting the stack and potentially enabling code execution."}],"affected":[{"vendor":"themoos","product":"core-moos","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"10.4.0","versionType":"custom"}]}],"references":[{"url":"https://github.com/themoos/core-moos/pull/73","tags":["issue-tracking","patch"],"name":"Pull Request #73"},{"url":"https://github.com/themoos/core-moos/commit/befb04df2039d0080715ea35f56268092db4ec0f","tags":["patch"],"name":"Proposed fix commit (pull request not merged)"},{"url":"https://github.com/themoos/core-moos","tags":["product"]},{"url":"https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/Utils/MOOSSerialPort.cpp#L595","tags":["technical-description"],"name":"MOOSSerialPort.cpp (verified sink)"},{"url":"https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-off-by-one-buffer-overflow-in-serial-telegram-handling","name":"VulnCheck Advisory: MOOS core-moos through 10.4.0 Off-by-One Buffer Overflow in Serial Telegram Handling","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"PHYSICAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.2,"baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-193","lang":"en","description":"Off-by-one Error","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-03T22:38:41.091Z"},"datePublic":"2026-09-01T00:00:00.000Z","credits":[{"lang":"en","value":"Vlatko Kosturjak","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-08T13:57:02.987590Z","id":"CVE-2026-85454","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-08T13:57:18.382Z"}}]}}}