CVE-2024-5803

HIGH

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

2024-10-03 security@nortonlifelock.com

Privilege Escalation

7.5

CVSS 3.1 · Vendor: nortonlifelock

Severity by source

Vendor (nortonlifelock) PRIMARY

7.5 HIGH

AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Primary rating from Vendor (nortonlifelock) · only source for this CVE.

CVSS VectorVendor: nortonlifelock

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 03, 2024 - 15:15 cve.org

HIGH 7.5

DescriptionCVE.org

The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled.

AnalysisAI

Technical ContextAI

This vulnerability is classified under CWE-367. The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled. Version information: before 24.1.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.