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CVE-2026-21385

HIGH CVSS 3.1: 7.8 EPSS 0.24% ACTIVE EXPLOIT
Updated Mar 03, 2026

CISA Known Exploited Vulnerability (KEV)

This vulnerability is actively exploited in the wild. Immediate patching is strongly recommended.

Due Date: Mar 24, 2026

Parameter Value
CVSS 7.8 (HIGH)
Type CWE-190 (Integer Overflow)
Public PoC Yes

Memory corruption while using alignments for memory allocation.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

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

CVSS Vector v3.1

Weakness Type (CWE)