CVE-2021-45338
First published: Mon Dec 27 2021(Updated: )
Multiple privilege escalation vulnerabilities in Avast Antivirus prior to 20.4 allow a local user to gain elevated privileges by calling unnecessarily powerful internal methods of the main antivirus service which could lead to the (1) arbitrary file delete, (2) write and (3) reset security.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Avast AntiVirus | <20.4 | |
| <20.4 |
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Reference Links
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.2
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.3
- https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0
Frequently Asked Questions
What is the CVE ID for this vulnerability?
The CVE ID for this vulnerability is CVE-2021-45338.
What is the severity of CVE-2021-45338?
The severity of CVE-2021-45338 is high, with a CVSS score of 7.8.
How can a local user exploit CVE-2021-45338?
A local user can exploit CVE-2021-45338 by calling unnecessarily powerful internal methods of the main antivirus service, which could lead to arbitrary file delete, write, and reset security.
Which versions of Avast Antivirus are affected by CVE-2021-45338?
Avast Antivirus prior to version 20.4 is affected by CVE-2021-45338.
Where can I find more information about CVE-2021-45338?
You can find more information about CVE-2021-45338 at the following references: [link1], [link2], [link3].
- collector/nvd-index
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