{"id":"CVE-2026-76860","state":"PUBLISHED","title":"Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in wake_up_set.cgi via MAC and ID Tokenization","description":"Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in wake_up_set.cgi caused by unbounded tokenization of MAC and ID input. Attackers can supply crafted MAC and ID values to the affected endpoint to overflow the stack buffer and corrupt program memory.","publishedAt":"2026-09-15T21:57:54.190Z","updatedAt":"2026-09-16T19:31:10.277Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Netcore NR255-V"],"affected":[{"vendor":"Netcore","product":"NR255-V","defaultStatus":"unaffected","versions":[{"version":"1.5.130703","status":"affected","versionType":"custom"}]}],"references":["https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-wake-up-set-overflow.md","https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stack-based-buffer-overflow-in-wake-up-set-cgi-via-mac-and-id-tokenization"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/76xxx/CVE-2026-76860.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76860","state":"PUBLISHED","datePublished":"2026-09-15T21:57:54.190Z","dateUpdated":"2026-09-16T19:31:10.277Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-19T21:47:08.935Z"},"containers":{"cna":{"title":"Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in wake_up_set.cgi via MAC and ID Tokenization","descriptions":[{"lang":"en","value":"Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in wake_up_set.cgi caused by unbounded tokenization of MAC and ID input. Attackers can supply crafted MAC and ID values to the affected endpoint to overflow the stack buffer and corrupt program memory."}],"affected":[{"vendor":"Netcore","product":"NR255-V","defaultStatus":"unaffected","versions":[{"version":"1.5.130703","status":"affected","versionType":"custom"}]}],"references":[{"url":"https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-wake-up-set-overflow.md","name":"Netcore router public references: Stack-based Buffer Overflow in wake_up_set.cgi via Unbounded MAC and ID Tokenization","tags":["third-party-advisory"]},{"url":"https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stack-based-buffer-overflow-in-wake-up-set-cgi-via-mac-and-id-tokenization","name":"VulnCheck Advisory: Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in wake_up_set.cgi via MAC and ID Tokenization","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","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:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","lang":"en","description":"Stack-based Buffer Overflow","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-15T21:57:54.190Z"},"datePublic":"2026-09-04T00:00:00.000Z","credits":[{"lang":"en","value":"Zhou Ao","type":"finder"},{"lang":"en","value":"Yin Luxing","type":"finder"},{"lang":"en","value":"Jiang Yuxuan","type":"finder"},{"lang":"en","value":"Liu Xin","type":"finder"},{"lang":"en","value":"@Nebusec","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T19:30:40.240306Z","id":"CVE-2026-76860","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-16T19:31:10.277Z"}}]}}}