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6.5

CVE-2021-33603: A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Atlant whereby the AVPACK module component used in certain F-Secure products can crash while scanning a fuzzed files. The exploit ...

CVE-2021-33603 · published 5 years ago
Summary

A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Atlant whereby the AVPACK module component used in certain F-Secure products can crash while scanning a fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service (DoS) of...

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
f-secure atlant All versions
cpe:2.3:a:f-secure:atlant:-:*:*:*:*:*:*:*
f-secure cloud_protection_for_salesforce All versions
cpe:2.3:a:f-secure:cloud_protection_for_salesforce:-:*:*:*:*:*:*:*
f-secure elements_for_microsoft_365 All versions
cpe:2.3:a:f-secure:elements_for_microsoft_365:-:*:*:*:*:*:*:*
f-secure internet_gatekeeper All versions
cpe:2.3:a:f-secure:internet_gatekeeper:-:*:*:*:*:-:*:*
f-secure linux_security All versions
cpe:2.3:a:f-secure:linux_security:-:*:*:*:*:*:*:*
f-secure elements_endpoint_detection_and_response All versions
cpe:2.3:a:f-secure:elements_endpoint_detection_and_response:-:*:*:*:*:*:*:*
f-secure elements_endpoint_protection All versions
cpe:2.3:a:f-secure:elements_endpoint_protection:-:*:*:*:*:*:*:*
Original advisory text
A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Atlant whereby the AVPACK module component used in certain F-Secure products can crash while scanning a fuzzed files. The exploit ...
A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Atlant whereby the AVPACK module component used in certain F-Secure products can crash while scanning a fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service (DoS) of the Anti-Virus engine.
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
6.5 Medium
Exploitation
<1% chance of attack within 30 days
Timeline
Published8 Oct 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
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