CVE-2026-58599

HIGH CVSS 3.1: 7.8 EPSS 0.48%
Updated Sep 09, 2026
Microsoft
Parameter Value
CVSS 7.8 (HIGH)
Type CWE-122 (Heap-based Buffer Overflow)
Vendor Microsoft
Public PoC No

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.

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
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1