CVE-2025-7003: CWE-125 Out-of-bounds Read in Gen Digital Avira Antivirus
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.56.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-7003) involves a heap buffer out-of-bounds read in the Avira Antivirus engine triggered by scanning a specially crafted malformed PDF file. Successful exploitation could lead to local code execution or denial-of-service of the antivirus process. The affected software includes Avira Antivirus engine builds before 8.3.70.56 on Windows, macOS, and Linux. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
The vulnerability allows a local attacker to potentially execute arbitrary code or cause a denial-of-service condition in the Avira Antivirus engine by leveraging a malformed PDF file. This impacts confidentiality, integrity, and availability of the affected system's antivirus protection.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, avoid scanning untrusted or malformed PDF files locally with affected versions of Avira Antivirus. Monitor vendor communications for updates.
CVE-2025-7003: CWE-125 Out-of-bounds Read in Gen Digital Avira Antivirus
Description
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.56.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-7003) involves a heap buffer out-of-bounds read in the Avira Antivirus engine triggered by scanning a specially crafted malformed PDF file. Successful exploitation could lead to local code execution or denial-of-service of the antivirus process. The affected software includes Avira Antivirus engine builds before 8.3.70.56 on Windows, macOS, and Linux. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
The vulnerability allows a local attacker to potentially execute arbitrary code or cause a denial-of-service condition in the Avira Antivirus engine by leveraging a malformed PDF file. This impacts confidentiality, integrity, and availability of the affected system's antivirus protection.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, avoid scanning untrusted or malformed PDF files locally with affected versions of Avira Antivirus. Monitor vendor communications for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GEN
- Date Reserved
- 2025-07-02T07:39:58.345Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c871ae617e2d834ccce10
Added to database: 06/12/2026, 22:24:26 UTC
Last enriched: 06/20/2026, 16:02:27 UTC
Last updated: 07/31/2026, 19:22:56 UTC
Views: 42
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