Ad

CVE-2026-5264

HIGH CVSS 4.0: 8.3 EPSS 0.24%
Updated Apr 09, 2026
Heap
Parameter Value
CVSS 8.3 (HIGH)
Type CWE-122 (Heap-based Buffer Overflow)
Vendor Heap
Public PoC No

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Related Vulnerabilities