CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.0. It affects Apache. It is listed in CISA's Known Exploited Vulnerabilities catalog, indicating confirmed active exploitation in the wild. Its EPSS score suggests a 100.0% probability of exploitation in the next 30 days. It may be remotely exploitable.
CISA KEV Details
Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.
Ransomware use: Known
Added to KEV: 2021-12-01
Required action: Apply updates per vendor instructions.
CVE
CVE-2021-40438
Severity
CRITICAL
CVSS
9
EPSS
100.00%
Apache
Original NVD Description
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
Related CVEs
Other vulnerabilities affecting the same vendor(s)