CVE-2025-4134 describes a local privilege escalation vulnerability in Avast Business Antivirus for Linux version 4.5. The flaw stems from insufficient file validation during the update process, allowing a local attacker to manipulate update files and potentially execute arbitrary code with elevated privileges. With a CVSS score of 7.3 (High), this vulnerability requires local access and user interaction, but successful exploitation could lead to full compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Avast | Avast Business Antivirus | 4.5.1CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.