CVE-2025-7011 (GCVE-0-2025-7011)

Vulnerability from cvelistv5 – Published: 2026-06-12 22:12 – Updated: 2026-06-12 22:12
VLAI
Title
Avast antivirus heap OOB when scanning a malformed zip file
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
Assigner
GEN
References
Impacted products
Vendor Product Version
Gen Digital Avast Antivirus Affected: 25020100 , < 25021208 (custom)
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Gen Digital AVG Antivirus Affected: 25020100 , < 25021208 (custom)
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Gen Digital Norton Antivirus Affected: 25020100 , < 25021208 (custom)
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Gen Digital Avast One Affected: 25020100 , < 25021208 (custom)
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Gen Digital Avast Business Antivirus Affected: 25020100 , < 25021208 (custom)
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Date Public
2025-05-26 11:28
Credits
Mike Zhang, an independent security researcher
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.