CVE-2025-10101 is a high-severity heap-based buffer overflow and out-of-bounds write vulnerability affecting Avast Antivirus on macOS, specifically versions from 15.7 before 3.9.2025. This flaw can be triggered by a crafted Mach-O file, potentially leading to local code execution or denial of service for the antivirus protection. With a CVSS score of 8.1 (High), the vulnerability has a local attack vector, high attack complexity, and significant impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Gen Digital | AVG Antivirus | >= 0, < 25090300CNA affecteddefault affected | |
| Gen Digital | Avast Antivirus | >= 0, < 25090300CNA affecteddefault affected | |
| Gen Digital | Avast Business Antivirus | >= 0, < 25090300CNA affecteddefault affected | |
| Gen Digital | Avast One | >= 0, < 25090300CNA affecteddefault affected | |
| Gen Digital | Norton Antivirus | >= 0, < 25090300CNA affecteddefault affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.