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PatchSiren cyber security CVE debrief

CVE-2025-7017 Gen Digital CVE debrief

A heap buffer out-of-bounds read vulnerability was discovered in the Avira Antivirus engine when scanning a malformed Windows MSI file. This issue, tracked as CVE-2025-7017, may allow for Local Execution of Code or Denial-of-Service of the antivirus engine process. The vulnerability affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.56. The CVSS score for this vulnerability is 7.8, indicating a High severity level.

Vendor
Gen Digital
Product
Avira Antivirus
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-12
Original CVE updated
2026-06-15
Advisory published
2026-06-12
Advisory updated
2026-06-15

Who should care

Users of Avira Antivirus on Windows, macOS, and Linux with engine builds before 8.3.70.56 should apply the necessary updates to mitigate this vulnerability.

Technical summary

The vulnerability is caused by a heap buffer out-of-bounds read in the Avira Antivirus engine when processing a malformed Windows MSI file. This could potentially lead to local code execution or a denial-of-service condition.

Defensive priority

High

Recommended defensive actions

  • Update Avira Antivirus to engine build 8.3.70.56 or later.

Evidence notes

The CVE record and details were obtained from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-7017 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-7017

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-7017 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-7017

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.