How severe is CVE-2022-28964?

CVE-2022-28964 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2022-28964 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28964?

CVE-2022-28964 affects Avast Premium Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28964?

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-2022-28964 published?

CVE-2022-28964 was published on 2022-05-20 and last updated on 2026-06-17.

CVE-2022-28964

CVE-2022-28964 is a high-severity vulnerability in Avast Premium Security with a CVSS 3.x base score of 7.1. 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-426.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 5.4
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Avast Premium Security
Published: 2022-05-20
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2022-28964?: 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.
How severe is CVE-2022-28964?: CVE-2022-28964 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2022-28964 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28964?: CVE-2022-28964 affects Avast Premium Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28964?: 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-2022-28964 published?: CVE-2022-28964 was published on 2022-05-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:avast:premium_security:*:*:*:*:*:*:*:*

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