CVE-2025-7018: CWE-476 NULL Pointer Dereference in Gen Digital Avira Antivirus
A null pointer dereference vulnerability exists in the Avira Antivirus engine when scanning malformed Windows PE files. This flaw can cause the antivirus engine process to crash, resulting in a denial-of-service condition. The issue affects Avira Antivirus on Windows, macOS, and Linux platforms for engine builds prior to version 8.3.70.64. The vulnerability has a medium severity rating with a CVSS score of 5.5. No official patch or remediation level has been confirmed at this time.
AI Analysis
Technical Summary
CVE-2025-7018 is a null pointer dereference vulnerability (CWE-476) in the Avira Antivirus engine that occurs during the scanning of malformed Windows Portable Executable (PE) files. This vulnerability can cause the antivirus engine process to crash, leading to denial-of-service (DoS). It affects Avira Antivirus on Windows, macOS, and Linux platforms for engine builds before 8.3.70.64. The vulnerability has a CVSS 3.1 base score of 5.5, indicating medium severity. There is no vendor advisory or patch information currently available to confirm remediation status.
Potential Impact
Successful exploitation of this vulnerability results in a denial-of-service condition by crashing the Avira Antivirus engine process. There is no impact on confidentiality or integrity, only availability is affected. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid scanning untrusted or malformed Windows PE files if possible to reduce risk of triggering the denial-of-service condition.
CVE-2025-7018: CWE-476 NULL Pointer Dereference in Gen Digital Avira Antivirus
Description
A null pointer dereference vulnerability exists in the Avira Antivirus engine when scanning malformed Windows PE files. This flaw can cause the antivirus engine process to crash, resulting in a denial-of-service condition. The issue affects Avira Antivirus on Windows, macOS, and Linux platforms for engine builds prior to version 8.3.70.64. The vulnerability has a medium severity rating with a CVSS score of 5.5. No official patch or remediation level has been confirmed at this time.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-7018 is a null pointer dereference vulnerability (CWE-476) in the Avira Antivirus engine that occurs during the scanning of malformed Windows Portable Executable (PE) files. This vulnerability can cause the antivirus engine process to crash, leading to denial-of-service (DoS). It affects Avira Antivirus on Windows, macOS, and Linux platforms for engine builds before 8.3.70.64. The vulnerability has a CVSS 3.1 base score of 5.5, indicating medium severity. There is no vendor advisory or patch information currently available to confirm remediation status.
Potential Impact
Successful exploitation of this vulnerability results in a denial-of-service condition by crashing the Avira Antivirus engine process. There is no impact on confidentiality or integrity, only availability is affected. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid scanning untrusted or malformed Windows PE files if possible to reduce risk of triggering the denial-of-service condition.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GEN
- Date Reserved
- 2025-07-02T12:01:13.717Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c871ee617e2d834ccceec
Added to database: 6/12/2026, 10:24:30 PM
Last enriched: 6/12/2026, 10:40:22 PM
Last updated: 6/13/2026, 12:57:24 AM
Views: 6
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