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CVE-2026-6328

HIGH CVSS 4.0: 8.3
Updated Apr 17, 2026
Linux
Parameter Value
CVSS 8.3 (HIGH)
Type CWE-20 (Improper Input Validation), CWE-347 (Improper Verification of Cryptographic Signature)
Vendor Linux
Public PoC No

Improper input validation, Improper verification of cryptographic signature vulnerability in XQUIC Project XQUIC xquic on Linux (QUIC protocol implementation, packet processing module, STREAM frame handler modules) allows Protocol Manipulation.This issue affects XQUIC: through 1.8.3.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v4.0