{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"private-octopus/picoquic","product":"picoquic","source":"CNA: VulnCheck","vendor":"private-octopus","versions":[{"lessThan":"2026.11.05.3e2e3d3","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-129135","cwes":["CWE-190"],"description":"picoquic before 2026.11.05.3e2e3d3 contains an integer overflow vulnerability in picoquic_decode_time_stamp_frame() that allows remote QUIC peers to corrupt stored timestamps by sending oversized TIME_STAMP values. Attackers on connections negotiating the TIME_STAMP extension can send large values shifted by ack_delay_exponent to wrap the result, corrupting RTT and bandwidth estimation and degrading congestion control.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":6.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":3.7,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},{"score":6.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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"},{"score":3.7,"severity":"low","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1794604666730,"publishedAt":1794587014108,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/private-octopus/picoquic/issues/2365"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/private-octopus/picoquic"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/private-octopus/picoquic/commit/ef21278928771a1ace1c6764cf0e5300d61f7d94"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/private-octopus/picoquic/pull/2343"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/private-octopus/picoquic/releases/tag/v2026.11.05.3e2e3d3"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/private-octopus/picoquic/blob/7966b3f6a5f1dc08a844b3bfa0b22b0f8d424736/picoquic/frames.c#L5651"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/picoquic-before-2026.11.05-3e2e3d3-integer-overflow-via-time-stamp-frame-decoder"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/private-octopus/picoquic"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/private-octopus/picoquic/blob/7966b3f6a5f1dc08a844b3bfa0b22b0f8d424736/picoquic/frames.c#L5651"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/private-octopus/picoquic/commit/ef21278928771a1ace1c6764cf0e5300d61f7d94"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/private-octopus/picoquic/issues/2365"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/private-octopus/picoquic/pull/2343"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/private-octopus/picoquic/releases/tag/v2026.11.05.3e2e3d3"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/picoquic-before-2026.11.05-3e2e3d3-integer-overflow-via-time-stamp-frame-decoder"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/private-octopus/picoquic/commit/ef21278928771a1ace1c6764cf0e5300d61f7d94"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/private-octopus/picoquic/pull/2343"}],"revision":"9868c8f26fee623a5e8d638fd257bb1a0225f09da120825d7ab84fa00c145f0c","sources":[{"modifiedAt":1794603955068,"name":"CNA: VulnCheck","retrievedAt":1794607780423,"url":"https://www.cve.org/CVERecord?id=CVE-2026-129135"},{"modifiedAt":1794604666730,"name":"NVD","retrievedAt":1794615552781,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-129135"}],"ssvc":{"assessedAt":1794603947021,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"picoquic before 2026.11.05.3e2e3d3 Integer Overflow via TIME_STAMP Frame Decoder","updatedAt":1794615552781}