Vulnerability · Published Dec 27, 2021 · Assigned by mitre
CVE-2021-45338
High 7.8
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.4%top 66.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
References
- https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 x_refsource_MISC
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1 x_refsource_MISC
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.2 x_refsource_MISC
- https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.3 x_refsource_MISC