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Out-of-bounds ReadWeakness · CWE-125

CVE-2025-9032

HIGH · 7.8 CVSS v3.1 Published 2026-06-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
81/100
Remediation priority · High
No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed Windows PE 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 8.3.70.98.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning malformed Windows PE files, potentially allowing local code execution or causing denial of service of the antivirus engine process.

MitigationUpdate Avira Antivirus engine to version 8.3.70.98 or later on all affected Windows, macOS, and Linux systems.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Avira Antivirus is installed
    Windows: Check for Avira installation in Program Files or open Avira Security UI. macOS: Check /Applications for Avira app. Linux: Run 'dpkg -l | grep -i avira' or 'rpm -qa | grep -i avira'.
    Affected if Avira Antivirus is not installed on the system
  2. Locate the Avira engine version
    Windows: Open Avira Security > Settings > About, or check registry key HKLM\SOFTWARE\Avira\Version. macOS: Run 'defaults read /Applications/Avira.app/Contents/Info.plist CFBundleVersion' or check in UI. Linux: Run 'avcon --version' or check '/opt/avira/etc/avira.version'.
    Affected if Unable to determine the installed engine version
  3. Compare engine version to fixed release
    Compare the installed engine version against 8.3.70.98 using version number comparison (8.3.70.x series). Ensure all three numeric components are evaluated.
    Affected if Installed engine version is lower than 8.3.70.98 (e.g., 8.3.69.x or earlier)
  4. Confirm PE file scanning is enabled
    Verify real-time protection or on-demand scan settings include PE file scanning (enabled by default in standard configurations). Check Avira scan profiles for PE file analysis.
    Affected if PE file scanning is explicitly disabled (uncommon default configuration)

System is affected if Avira Antivirus is installed with an engine version prior to 8.3.70.98 and PE file scanning is enabled (default state).

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update Avira Antivirus engine to version 8.3.70.98 or later on all affected Windows, macOS, and Linux systems.

Recommended fix High confidence

Avira Antivirus engine build 8.3.70.98 or later

  1. 1. Identify the current Avira Antivirus engine build version installed on the system
  2. 2. Navigate to the Avira antivirus application settings or about section to view engine version information
  3. 3. Check if the engine build version is below 8.3.70.98
  4. 4. If vulnerable, initiate an antivirus engine update through the Avira update mechanism
  5. 5. Verify that the engine has been updated to version 8.3.70.98 or later
  6. 6. Confirm the vulnerability is remediated by ensuring the engine version displays 8.3.70.98 or higher

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-9032 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data