Gen Digital Avast Antivirus up to 25021310 on Windows PE File out-of-bounds

Summaryinfo

A vulnerability categorized as critical has been discovered in Gen Digital Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One and Avast Business Antivirus up to 25021310 on Windows. The impacted element is an unknown function of the component PE File Handler. Such manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2025-7008. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Gen Digital Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One and Avast Business Antivirus up to 25021310 on Windows. Affected by this issue is an unknown functionality of the component PE File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Windows PE file with .NET metadata 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 25021310. 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.

The advisory is shared for download at gendigital.com. This vulnerability is handled as CVE-2025-7008 since 07/02/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability. Applying the patch 25021310 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-210127). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Anti-Malware Software

Vendor

• Gen Digital

Name

• Avast Antivirus
• Avast Business Antivirus
• Avast One
• AVG Antivirus
• Norton Antivirus

Version

• 25021310

License

• free

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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