🛡️ CVE-2025-29785
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-248 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

quic-go is an implementation of the QUIC protocol in Go. The loss recovery logic for path probe packets that was added in the v0.50.0 release can be used to trigger a nil-pointer dereference by a malicious QUIC client. In order to do so, the attacker first sends valid QUIC packets from different remote addresses (thereby triggering the newly added path validation logic: the server sends path probe packets), and then sending ACKs for packets received from the server specifically crafted to trigger the nil-pointer dereference. v0.50.1 contains a patch that fixes the vulnerability. This release contains a test that generates random sequences of sent packets (both regular and path probe packets), that was used to verify that the patch actually covers all corner cases. No known workarounds are available.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-248
Public Exploit ✅ No
Source NVD
Published 2025-06-03
Updated 2026-06-15
Modified 2025-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/quic-go/quic-go — —
unknown — —

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