Integer overflow in Gen Digital Avira Antivirus
Priority LOW 34CWE-190Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
A vulnerability within the Avira network protection feature allowed an attacker with local execution rights to cause an overflow. This could corrupt the data on the heap and lead to a denial-of-service situation. Issue was fixed with Endpointprotection.exe version 1.0.2303.633
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00299 22nd percentileScored 2026-11-07
Fix Fixed Avira Antivirus (AVIRA): 1.0.2303.633
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Gen Digital | Avira Antivirus | before 1.0.2303.633 | 1.0.2303.633 | Patch available | CNA |
- Avira Antivirus VendorGen Digital Affected before 1.0.2303.633 Fixed in 1.0.2303.633 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avira:antivirus:*:*:*:*:*:windows:*:* | before 1.0.2303.633 | Vulnerable | Gen Digital |
- cpe:2.3:a:avira:antivirus:*:*:*:*:*:windows:*:* Versions before 1.0.2303.633 Vulnerable ·Gen Digital
Remediation
- Fix · CNA Avira Antivirus (AVIRA) Fixed in 1.0.2303.633
Timeline
- 2026-10-02 Threatist record created from CVE-2023-1900
- 2026-10-03 Alias added: GHSA-8c47-529w-9h8f
References
More Gen Digital Antivirus vulnerabilities
- TI-2016-08452 Avira Antivirus engine versions before 8.3.36.60 allow remote code execution as NT… CVSS 3.1HIGH 7.8
- TI-2020-09790 Avira Antivirus before 5.0.2003.1821 on Windows allows privilege escalation or a denial… CVSS 3.1HIGH 7.8
Sources
- CVE-2023-1900 · CVE Program
- CVE-2023-1900 · NVD
- FIRST EPSS
- GHSA-8c47-529w-9h8f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences