CVE-2026-1788 PUBLISHED

Buffer Overflow in Xquic Server

Assigner: alibaba
Reserved: 03.02.2026 Published: 03.02.2026 Updated: 03.02.2026

: Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.

Metrics

CVSS 4.0

CVSS Vector: 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/AU:Y/R:U/RE:M/U:Amber
CVSS Score: 6.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Xquic Project
Product	Xquic Server
Versions	Default: unaffected affected from 0 to 1.8.3 (incl.)

References

https://github.com/alibaba/xquic

Problem Types

CWE-787: Out-of-bounds Write CWE

Impacts

CAPEC-123: Buffer Manipulation