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High severity7.5NVD Advisory· Published Sep 18, 2023· Updated Jun 17, 2026

CVE-2023-42521

CVE-2023-42521

Description

Certain WithSecure products allow a remote crash of a scanning engine via processing of a compressed 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, Linux Security 64 12.0 , Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 1.0.35-1.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

16
  • WithSecure/Atlant2 versions
    cpe:2.3:a:withsecure:atlant:1.0.35-1:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:withsecure:atlant:1.0.35-1:*:*:*:*:*:*:*
    • (no CPE)range: 1.0.35-1
  • WithSecure/Client Security
    cpe:2.3:a:withsecure:client_security:15:*:*:*:*:*:*:*
  • WithSecure/Elements Endpoint Protection2 versions
    cpe:2.3:a:withsecure:elements_endpoint_protection:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:withsecure:elements_endpoint_protection:*:*:*:*:*:*:*:*range: >=17
    • (no CPE)range: 17 and later
  • WithSecure/Email And Server Security2 versions
    cpe:2.3:a:withsecure:email_and_server_security:15:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:withsecure:email_and_server_security:15:*:*:*:*:*:*:*
    • (no CPE)range: 15
  • WithSecure/Linux Protection
    cpe:2.3:a:withsecure:linux_protection:12.0:*:*:*:*:*:*:*
  • WithSecure/Linux Security 642 versions
    cpe:2.3:a:withsecure:linux_security_64:12.0:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:withsecure:linux_security_64:12.0:*:*:*:*:*:*:*
    • (no CPE)range: 12.0
  • WithSecure/Server Security2 versions
    cpe:2.3:a:withsecure:server_security:15:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:withsecure:server_security:15:*:*:*:*:*:*:*
    • (no CPE)range: 15
  • WithSecure/Client Security 15, Server Security 15, Email and Server Security 15, Elements Endpoint Protection 17 and later, Client Security for Mac 15, Elements Endpoint Protection for Mac 17 and later, Linux Security 64 12.0, Linux Protection 12.0, Atlantdescription
  • WithSecure/Linux Protection 12.0llm-fuzzy
    Range: 12.0
  • WithSecure/WithSecure Client Security 15llm-fuzzy
    Range: 15
  • WithSecure/Elements Client Security for Macllm-fuzzy
    Range: 15

Patches

Vulnerability mechanics

References

1

News mentions

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