CVE-2023-1586
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) ...
CVE-2023-1586 is a medium vulnerability (CVSS 6.5) in Avast Antivirus, published April 19, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. No source names a fixed version.
- Severity
- 6.5 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.21%EPSS, 11th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
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
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
Affected products
What each source reports
CVE List Score used
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
- Record
CVE-2023-1586- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-367
- Updated
- 2026-11-02
EUVDEUVD-2023-23818
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
- Record
EUVD-2023-23818- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h5r6-2gq4-p8x5
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) ...
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
- Record
GHSA-h5r6-2gq4-p8x5- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-367
- Updated
- 2026-11-02
NVD
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
- Record
CVE-2023-1586- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L - CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-367
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.