CVE-2023-5760

Time-of-check to time-of-use (TOCTOU) bug leads to full local privilege escalation.

Description

A time-of-check to time-of-use (TOCTOU) bug in handling of IOCTL (input/output control) requests. This TOCTOU bug leads to an out-of-bounds write vulnerability which can be further exploited, allowing an attacker to gain full local privilege escalation on the system.This issue affects Avast/Avg Antivirus: 23.8.

Remediation

Solution:

  • We encourage customers to ensure their security software is always updated to the latest version available.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.09%
Third-Party Advisory norton.com
Affected: Avast/AVG Avast/Avg Antivirus
Published at:
Updated at:

References

Link Tags
https://support.norton.com/sp/static/external/tools/security-advisories.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-5760?
CVE-2023-5760 has been scored as a high severity vulnerability.
How to fix CVE-2023-5760?
To fix CVE-2023-5760: We encourage customers to ensure their security software is always updated to the latest version available.
Is CVE-2023-5760 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5760 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5760?
CVE-2023-5760 affects Avast/AVG Avast/Avg Antivirus.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.