CVEvulnerability
CVE-2021-45339
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-12-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-863
Description
Privilege escalation vulnerability in Avast Antivirus prior to 20.4 allows a local user to gain elevated privileges by "hollowing" trusted process which could lead to the bypassing of Avast self-defense.
Affected configurations
• avast antivirus (< 20.4)
Related
Weakness · CWE (1)
- CWE-863 Incorrect Authorization weakness
References
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST0 Exploit, Third Party Advisory
- https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 Vendor Advisory
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST0 Exploit, Third Party Advisory
- https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 Vendor Advisory