{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-121505","assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","state":"PUBLISHED","assignerShortName":"GitLab","dateReserved":"2026-11-03T14:16:59.661Z","datePublished":"2026-11-03T14:17:09.654Z","dateUpdated":"2026-11-03T18:12:00.515Z"},"containers":{"cna":{"title":"Out-of-bounds Read in NTPsec","descriptions":[{"lang":"en","value":"An out-of-bounds read in the NTS-KE client response parser (nts_client_process_response_core) in NTPsec before 1.2.4 allows a malicious NTS-KE server to read the client's stack memory, including pointers that defeat ASLR, which the client then sends in cleartext as NTS cookies, via an NTS-KE record whose declared length exceeds the data received."}],"affected":[{"vendor":"NTPsec","product":"NTPsec","repo":"https://gitlab.com/NTPsec/ntpsec","versions":[{"version":"1.1.4","status":"affected","lessThan":"1.2.4","versionType":"semver"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-125: Out-of-bounds Read","cweId":"CWE-125","type":"CWE"}]}],"references":[{"url":"https://gitlab.com/NTPsec/ntpsec/-/commit/caf0eb5df3c6ddbfc2941389bff0f9146835c021"},{"url":"https://gitlab.com/NTPsec/ntpsec/-/work_items/836"},{"url":"https://gitlab.com/NTPsec/ntpsec/-/work_items/902"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW"}}],"solutions":[{"lang":"en","value":"Upgrade to version 1.2.4 or above."}],"credits":[{"lang":"en","value":"Artem Nasonov (Astra Linux) found and fixed the issue; Erica Windisch (Cyberdione Labs) analyzed its impact","type":"finder"}],"providerMetadata":{"orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","shortName":"GitLab","dateUpdated":"2026-11-03T14:17:09.654Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-03T18:11:50.547327Z","id":"CVE-2026-121505","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-03T18:12:00.515Z"}}]}}