CVE-2021-45336 describes a privilege escalation vulnerability in the Sandbox component of Avast Antivirus versions prior to 20.4. This flaw allows local sandboxed code to escape the sandbox and gain SYSTEM privileges by exploiting system IPC interfaces. With a CVSS score of 8.8 (HIGH), this vulnerability has a low attack complexity and requires local access, but can lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 20.4CPE matchmatch criteria | cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.