High severity · published Jun 12, 2026
CVE-2025-7017
Avira antivirus engine heap buffer OOB read when scanning a malformed Windows MSI file
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed Windows MSI 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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Avira Antivirus · Gen Digital
before 8.3.70.56 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-7017
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-7017
www.gendigital.com
https://www.gendigital.com/us/en/contact-us/security-advisories/
More from Avira Antivirus
7.8
CVE-2026-6676
Avira antivirus engine heap buffer OOB write when scanning a malformed POSIX tar archive
7.8
CVE-2025-14098
Avira antivirus engine heap buffer OOB write when scanning a malformed MS-DOS executable file
7.8
CVE-2025-9033
Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 3)
7.8
CVE-2025-9032
Avira antivirus engine heap buffer OOB read when scanning a malformed PE file
7.8
CVE-2025-7003
Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 1)