Code execution or crash via malformed .NET metadata
Published Jun 12, 2026 · Updated Jun 12, 2026
Heap out-of-bounds read in Avast Antivirus before definition build 25021310 allows attackers to execute code or crash via a malformed PE file. The shared scanner's .NET metadata handling reads beyond a heap buffer while parsing malformed Windows PE metadata. Exploitation requires user interaction that places an attacker-supplied file into a local scan; AVG Antivirus, Norton AntiVirus, Avast One, and Avast Business Antivirus share the affected engine.
Summary
What happened
Heap out-of-bounds read in Avast Antivirus before definition build 25021310 allows attackers to execute code or crash via a malformed PE file. The shared scanner's .NET metadata handling reads beyond a heap buffer while parsing malformed Windows PE metadata. Exploitation requires user interaction that places an attacker-supplied file into a local scan; AVG Antivirus, Norton AntiVirus, Avast One, and Avast Business Antivirus share the affected engine.
The record
- CVE
- CVE-2025-7008
- Published
- Jun 12, 2026
- Updated
- Jun 12, 2026
- Vendor
- Gen Digital
- Product
- Avast One
- Classifications
- CWE-125, CAPEC-549, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 12, 2026CVE publishedPublication date reported by the CVE source.
- Jun 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <25021310
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo