Denial-of-Service (DoS) Vulnerability
Description
A Denial-of-Service (DoS) vulnerability was discovered in all versions of F-Secure Atlant whereby the SAVAPI component used in certain F-Secure products can crash while scanning 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
A DoS vulnerability in F-Secure Atlant's SAVAPI component allows remote attackers to crash the antivirus engine via fuzzed files.
Vulnerability
A Denial-of-Service (DoS) vulnerability exists in the SAVAPI component of F-Secure Atlant across all versions. The component can crash while scanning specially crafted (fuzzed) files, leading to a denial of service of the Anti-Virus engine [1][2].
Exploitation
An attacker can trigger the vulnerability remotely by sending a fuzzed file to a system running the affected F-Secure product. When the file is scanned by the SAVAPI component, it causes a crash. No authentication is required for this attack [1].
Impact
Successful exploitation results in a Denial-of-Service (DoS) of the Anti-Virus engine, rendering the protection ineffective until the service is restarted [1].
Mitigation
F-Secure has released a security advisory (FSC-2021-33598) detailing the vulnerability and providing fixes. Users should update their F-Secure Atlant installation to the latest version as specified in the advisory [2].
AI Insight generated on May 27, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- F-Secure/F-Secure endpoint protection products on Windows, Mac and Linux Securityv5Range: All Version
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-famemitrex_refsource_MISC
- www.f-secure.com/en/business/support-and-downloads/security-advisoriesmitrex_refsource_MISC
- www.f-secure.com/en/business/support-and-downloads/security-advisories/fsc-2021-33598mitrex_refsource_MISC
News mentions
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