CVE-2025-13032 | Double fetch in sandbox kernel driver in Avast/AVG Antivirus… | CVSS 9.9 CRITICAL

Description

Double fetch in sandbox kernel driver in Avast/AVG Antivirus <25.3 on windows allows local attacker to escalate privelages via pool overflow.

CVE ID: CVE-2025-13032
State: PUBLISHED
Assigner: NLOK
Reserved: 2025-11-11 15:59 UTC
Published: 2025-11-11 16:16 UTC
Last updated: 2025-11-14 19:27 UTC
Primary CWE: CWE-367
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
Vendor / Product: Avast / (Free/Premiium/Ultimeat) Antivirus
Sources: cve.org · NVD

9.9 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC — CISA Coordinator

Affected products (3)

Vendor	Product	Platform	Versions
Avast	(Free/Premiium/Ultimeat) Antivirus	Windows	0 < 25.3
AVG	(Free/Inernet Security/Ultimate) Antivirus	Windows	0 < 25.3
Avsat	One	Windows	0 < 25.3

Weakness (CWE)

CWE	Source	Description
CWE-367	cna	CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.9	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References (1)