7.8

CVE-2025-10101

Avast antivirus heap buffer OOB read when scanning a malformed Mach-O file

Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Mach-O file may allow Local Execution of Code or Denial-of-Service of the antivirus process.

This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25090300.



The affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerGen Digital
≫
Produkt Avast Antivirus
Default Statusaffected
Version 0
Version < 25090300
Status affected
HerstellerGen Digital
≫
Produkt AVG Antivirus
Default Statusaffected
Version 0
Version < 25090300
Status affected
HerstellerGen Digital
≫
Produkt Norton Antivirus
Default Statusaffected
Version 0
Version < 25090300
Status affected
HerstellerGen Digital
≫
Produkt Avast One
Default Statusaffected
Version 0
Version < 25090300
Status affected
HerstellerGen Digital
≫
Produkt Avast Business Antivirus
Default Statusaffected
Version 0
Version < 25090300
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.047
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@nortonlifelock.com 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://www.gendigital.com/us/en/contact-us/security-advisories/