CVE-2026-76889

MEDIUM CVSS 3.1: 5.5 EPSS 0.10%
Updated Aug 31, 2026
Wireshark
Parameter Value
CVSS 5.5 (MEDIUM)
Affected Versions 4.4.0 — 4.6.8
Fixed In 4.4.18
Type CWE-122 (Heap-based Buffer Overflow)
Vendor Wireshark
Public PoC No

UMTS FP protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

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

CVSS Vector v3.1

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Wireshark Wireshark
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
4.4.0 4.4.18
Wireshark Wireshark
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
4.6.0 4.6.8