An arbitrary file write vulnerability in Avast Premium Security before v21.11.2500 (build…
Priority LOW 31CWE-426Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-426.
Summary
An arbitrary file write vulnerability in Avast Premium Security before v21.11.2500 (build 21.11.6809.528) allows attackers to cause a Denial of Service (DoS) via a crafted DLL file.
Why it matters now
EPSS 0.00236 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-28964
- 2026-10-03 Alias added: GHSA-j4xv-vq4c-x7jr
References
More Avast Premium Security vulnerabilities
- TI-2019-13619 In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to… CVSS 3.1HIGH 7.8
- TI-2023-22493 Link following in Avast Premium Security CVSS 3.0HIGH 7.8
- TI-2023-22492 Incorrect authorization in Avast Premium Security CVSS 3.1HIGH 7.8
- TI-2022-11553 Multiple DLL hijacking vulnerabilities via the components instup.exe and wsc_proxy.exe in… CVSS 3.1MEDIUM 6.5
- TI-2021-08781 Link following in Avast Premium Security CVSS 3.1MEDIUM 6.1
Sources
- CVE-2022-28964 · CVE Program
- CVE-2022-28964 · NVD
- FIRST EPSS
- GHSA-j4xv-vq4c-x7jr · GitHub Advisory Database · CC BY 4.0
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