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CVE-2021-27223

21
FAUCET Score

CVE-2021-27223 is a denial-of-service vulnerability affecting various Kaspersky Anti-Virus and Endpoint Security products. A local user can trigger a Windows crash by executing a specially crafted binary module. Rated Medium with a CVSS score of 5.5, this vulnerability has a low attack complexity and requires local access, with the primary impact being system availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021-06CPE matchmatch criteria
cpe:2.3:a:kaspersky:anti-virus:*:*:*:*:*:*:*:*
< 2021-06CPE matchmatch criteria
cpe:2.3:a:kaspersky:endpoint_security:*:*:*:*:*:*:*:*
< 2021-06CPE matchmatch criteria
cpe:2.3:a:kaspersky:internet_security:*:*:*:*:*:*:*:*
< 2021-06CPE matchmatch criteria
cpe:2.3:a:kaspersky:security_cloud:*:*:*:*:*:*:*:*
< 2021-06CPE matchmatch criteria
cpe:2.3:a:kaspersky:small_office_security:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 46th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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

support.kaspersky.com / general/vulnerability.aspx
Broken Link