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CVE-2022-28965

22
FAUCET Score

CVE-2022-28965 describes multiple DLL hijacking vulnerabilities in Avast Premium Security versions prior to v21.11.2500, specifically impacting the instup.exe and wsc_proxy.exe components. With a CVSS score of 6.5 (Medium), this vulnerability allows a highly privileged attacker to execute arbitrary code or cause a Denial of Service (DoS) through user interaction with a crafted DLL file. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 21.11.2500CPE matchmatch criteria
cpe:2.3:a:avast:premium_security:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.6
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
19.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 61st percentile among its peer group of 177 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

forum.avast.com / index.php
PatchRelease NotesVendor Advisory
github.com / netero1010/Vulnerability-Disclosure/tree/main/CVE-2022-AVAST2
Third Party Advisory