CVE-2021-40833

Denial-of-Service (DoS) Vulnerability

CVSS 5.5 MEDIUMEPSS 0.4%

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

26 Nov 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A vulnerability affecting F-Secure antivirus engine was discovered whereby unpacking UPX file can lead to denial-of-service. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.

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

Affected products

F-Secure · F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit) F-Secure Linux Security 64 F-Secure Internet Gatekeeper & F-Secure Atlant

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References

https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40833