High severity7.5NVD Advisory· Published Nov 16, 2023· Updated Jun 17, 2026
CVE-2023-47263
CVE-2023-47263
Description
Certain WithSecure products allow a Denial of Service (DoS) in the antivirus engine when scanning a fuzzed PE32 file. This affects WithSecure Client Security 15, WithSecure Server Security 15, WithSecure Email and Server Security 15, WithSecure Elements Endpoint Protection 17 and later, WithSecure Client Security for Mac 15, WithSecure Elements Endpoint Protection for Mac 17 and later, WithSecure Linux Security 64 12.0, WithSecure Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 15 and later.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- WithSecure/Client Securitydescription
- Range: 15
- Range: 15
- Range: >=15
- Range: >=17
Patches
Vulnerability mechanics
References
1- www.withsecure.com/en/support/security-advisories/cve-2023-47263nvdVendor Advisory
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