CVE-2023-1900
CVE-2023-1900 is a high-severity vulnerability in Avira Antivirus with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (22nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-190
- Affected product: Avira Antivirus
- Published:
- Last modified:
Description
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
Frequently asked questions
- What is CVE-2023-1900?
- 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
- How severe is CVE-2023-1900?
- CVE-2023-1900 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-1900 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-1900?
- CVE-2023-1900 affects Avira Antivirus. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-1900?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-1900 published?
- CVE-2023-1900 was published on 2023-04-19 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:avira:antivirus:*:*:*:*:*:windows:*:*
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