CVE-2023-1586

Name: CVE-2023-1586
Creator: NVD / NIST
Published: 2023-04-19T19:15:06.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2023-1586 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

0.21%

11.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Avast	Antivirus	>= 22.5, < 22.11
Avg	Anti-Virus	>= 22.5, < 22.11

References

https://support.norton.com/sp/static/external/tools/security-advisories.htmlThird Party Advisory
https://support.norton.com/sp/static/external/tools/security-advisories.htmlThird Party Advisory

Timeline

Published: Apr 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1586?

How severe is CVE-2023-1586?

CVE-2023-1586 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1586?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1586?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST