CVE-2021-42013Vulnerability
Apache HTTP Server Path Traversal Vulnerability
Exploited in the wildCISA added it to its Known Exploited Vulnerabilities list on .
Reported by 1 independent source · first reported by GreyNoise · last reported
Last reported 2 years ago
CISA KEVAdded 3 Nov 2021
Fix due 17 Nov 2021
Used by ransomware: knownCISA KEV catalogue
Fix due 17 Nov 2021
Used by ransomware: knownCISA KEV catalogue
EPSS100.0%
higher than 99% of CVEsFIRST EPSS, as of 20 Oct 2026
higher than 99% of CVEsFIRST EPSS, as of 20 Oct 2026
What the reports say
1 report, newest first · the exact sentence from each-
U.S. and UK Warn of Russian Cyber Threats: 9 of 12 GreyNoise-Tracked Vulnerabilities in the Advisory Are Being Probed Right Now“CVE-2021-42013 — Apache HTTP Server Path Traversal”
Indicators reported together
named in the same reportsAlso named with it: CVE-2023-20198, CVE-2023-4966, CVE-2018-13379, CVE-2023-42793, CVE-2023-29357, CVE-2021-27850, CVE-2021-41773, CVE-2023-35078
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