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CVE-2021-41773 & CVE-2021-42013

ID: 3ae7bcce-dfaa-5527-9fc8-fd81dc339af2

STIX ID: report--3ae7bcce-dfaa-5527-9fc8-fd81dc339af2

Feed Name: Arctic Wolf Blog

Threat Score
85/100

Date Published: 2021-10-09

Date Updated: 2026-04-26

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Apache HTTP Server versions 2.4.49 and 2.4.50 contain a path traversal vulnerability (CVE-2021-41773) and a related, critical remote code execution vulnerability (CVE-2021-42013, CVSS 9.8) that has been observed exploited in the wild; Apache released 2.4.51 to remediate both issues and recommends upgrading and verifying access control (Require directives) and CGI exposure to mitigate risk.

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