Heap-based Buffer Overflow, Out-of-bounds Write vulnerability in Avast Antivirus on MacOS of a crafted Mach-O file may allow Local Execution of Code or Denial of Service of antivirus protection.
This issue affects Antivirus: from 15.7 before 3.9.2025.

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Tracking

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Advisories

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Fixes

Solution

Upgrade to virus definitions 25090300 (i.e. 3.9.2025) or newer, released 03/Sep/2025


Workaround

No workaround given by the vendor.

History

Tue, 02 Dec 2025 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Avast
Avast antivirus
Vendors & Products Apple
Apple macos
Avast
Avast antivirus

Mon, 01 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 01 Dec 2025 16:00:00 +0000

Type Values Removed Values Added
Title Crafted Mach-O file may allow Remote Code Execution in Avast Antivirus 15.7 on MacOS

Mon, 01 Dec 2025 15:45:00 +0000

Type Values Removed Values Added
Description Heap-based Buffer Overflow, Out-of-bounds Write vulnerability in Avast Antivirus on MacOS of a crafted Mach-O file may allow Local Execution of Code or Denial of Service of antivirus protection. This issue affects Antivirus: from 15.7 before 3.9.2025.
Weaknesses CWE-122
CWE-787
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: NLOK

Published:

Updated: 2026-02-26T16:57:50.756Z

Reserved: 2025-09-08T10:10:40.173Z

Link: CVE-2025-10101

cve-icon Vulnrichment

Updated: 2025-12-01T15:56:03.292Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-01T16:15:50.690

Modified: 2025-12-02T17:16:43.890

Link: CVE-2025-10101

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-02T11:59:03Z

Weaknesses