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.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 13 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title picoquic before 2026.11.05.3e2e3d3 Integer Overflow via TIME_STAMP Frame Decoder
First Time appeared Privateoctopus
Privateoctopus picoquic
Weaknesses CWE-190
CPEs cpe:2.3:a:privateoctopus:picoquic:*:*:*:*:*:*:*:*
Vendors & Products Privateoctopus
Privateoctopus picoquic
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.3, '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T16:23:34.108Z

Reserved: 2026-11-13T16:01:05.142Z

Link: CVE-2026-129135

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T17:17:31.477

Modified: 2026-11-13T17:17:31.477

Link: CVE-2026-129135

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses