{"id":3229,"date":"2026-05-28T16:01:08","date_gmt":"2026-05-28T13:01:08","guid":{"rendered":"https:\/\/ws-sup.fi-s.seravo.com\/?page_id=3229"},"modified":"2026-05-28T16:01:19","modified_gmt":"2026-05-28T13:01:19","slug":"cve-2023-42520","status":"publish","type":"page","link":"https:\/\/support.withsecure.com\/en\/security-advisories\/cve-2023-42520\/","title":{"rendered":"CVE-2023-42520 Denial-of-Service (DoS) Vulnerability"},"content":{"rendered":"\n
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\n CVE-2023-42520<\/h4>
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Denial-of-Service (DoS) Vulnerability<\/p>\n<\/div>\n <\/div>\n <\/div>\n <\/div> <\/div>\n <\/div>\n<\/section>\n\n\n\n

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 <\/p>\n

Status<\/b><\/p>\n

Fixed<\/p>\n

Risk level<\/b><\/p>\n

Medium<\/p>\n

Action required<\/b><\/p>\n

No User action is required. The required fix has been published through automatic update channel with Capricorn database on 2023-08-16_10<\/p>\n

Affected products<\/b><\/p>\n

All WithSecure Endpoint Protection products for Windows WithSecure Client Security 15 WithSecure Server Security 15 WithSecure Email and Server Security 15 WithSecure Elements Endpoint Protection 17 onwards All WithSecure Endpoint Protection products for Mac WithSecure Client Security for Mac 15 WithSecure Elements Endpoint Protection for Mac 17 onwards All Linux Endpoint Protection products Linux Security 64 12.0 Linux Protection 12.0 WithSecure Atlant (formerly F-Secure Atlant) = 1.0.35-1<\/p>\n

Platforms<\/b><\/p>\n

All supported platforms for the affected products<\/p>\n

Date issued<\/b><\/p>\n

2023-08-24<\/p>\n

Read more<\/a><\/div>\n<\/div>\n <\/div>\n
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More information<\/h3>\n<\/div>\n
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A Denial-of-Service (DoS) vulnerability was discovered in WithSecure products whereby it was possible to crash a scanning engine when unpacking specially crafted data files. The exploit can be triggered remotely by an attacker.<\/p>\n

This issue was reported to WithSecure through the Vulnerability Reward Program. No known exploit or attack has been seen in the wild.<\/p>\n<\/div>\n

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Contributors<\/h3>\n<\/div>\n
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WithSecure\u00a0would like to thank following person for\u00a0bringing this issue to our attention.<\/p>\n<\/div>\n

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faty420<\/h4>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n <\/div>\n <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":11,"featured_media":0,"parent":2271,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-3229","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nCVE-2023-42520 Denial-of-Service (DoS) Vulnerability - WithSecure\u2122<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/support.withsecure.com\/en\/security-advisories\/cve-2023-42520\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CVE-2023-42520 Denial-of-Service (DoS) Vulnerability - WithSecure\u2122\" \/>\n<meta property=\"og:url\" content=\"https:\/\/support.withsecure.com\/en\/security-advisories\/cve-2023-42520\/\" \/>\n<meta property=\"og:site_name\" content=\"WithSecure\u2122\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-28T13:01:19+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/support.withsecure.com\\\/en\\\/security-advisories\\\/cve-2023-42520\\\/\",\"url\":\"https:\\\/\\\/support.withsecure.com\\\/en\\\/security-advisories\\\/cve-2023-42520\\\/\",\"name\":\"CVE-2023-42520 Denial-of-Service (DoS) Vulnerability - 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