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VulnerabilityPublished Updated

CVE-2025-7011: Gen Digital Avast Antivirus · Out-of-bounds Read

Affects Gen Digital Avast AntivirusSource CVE Database V5

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Not known to be exploited · CVSS 7.8 High.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Gen DigitalAvast AntivirusAffected
  • ≥ 25020100, < 25021208
Fixed in–
Gen DigitalAVG AntivirusAffected
  • ≥ 25020100, < 25021208
Fixed in–
Gen DigitalNorton AntivirusAffected
  • ≥ 25020100, < 25021208
Fixed in–
Gen DigitalAvast OneAffected
  • ≥ 25020100, < 25021208
Fixed in–
Gen DigitalAvast Business AntivirusAffected
  • ≥ 25020100, < 25021208
Fixed in–

AI-suggested

A fix is available through virus definition updates. Updating the virus definition build to 25021208 or later fully mitigates the vulnerability. Since the scanning engine is updated via the shared virus definition stream, ensuring the antivirus product is up to date with the latest virus definitions is the recommended remediation. No other specific mitigations are indicated.

Description

Heap out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed zip file containing XML 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 from 25020100 before 25021208. 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.

References

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