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CVE-2023-43767

22
FAUCET Score

CVE-2023-43767 is a Denial of Service vulnerability affecting multiple WithSecure products, including Client Security, Server Security, Email and Server Security, and Elements Endpoint Protection across Windows, Mac, and Linux platforms. The vulnerability, stemming from the aepack archive unpack handler, carries a CVSS score of 7.5 (HIGH), indicating it can be exploited remotely with low complexity to cause a complete denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
12.0CPE matchmatch criteria
cpe:2.3:a:f-secure:linux_protection:12.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:a:f-secure:linux_security_64:12.0:*:*:*:*:*:*:*
1.0.35-1CPE matchmatch criteria
cpe:2.3:a:f-secure:atlant:1.0.35-1:*:*:*:*:*:*:*
15.00CPE matchmatch criteria
cpe:2.3:a:f-secure:client_security:15.00:*:*:*:*:*:*:*
>= 17.0CPE matchmatch criteria
cpe:2.3:a:f-secure:elements_endpoint_protection:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 19th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

withsecure.com / en/support/security-advisories
Vendor Advisory
withsecure.com / en/support/security-advisories/cve-2023-nnn3
Broken Link