SB20260425208 - Uncaught Exception in quic-go
Published: April 25, 2026
Security Bulletin ID
SB20260425208
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Uncaught Exception (CVE-ID: CVE-2025-29785)
CWE-ID: CWE-248 - Uncaught Exception
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an uncaught exception in the loss recovery logic for path probe packets when handling specially crafted ACKs for server-sent packets during path validation. A remote attacker can send valid QUIC packets from different remote addresses and then send specially crafted ACKs to cause a denial of service.
Remediation
Install update from vendor's website.