Is CVE-2011-4362 in the CISA KEV catalog?

No. CVE-2011-4362 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-4362?

CVE-2011-4362 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2011-4362?

CVE-2011-4362 has an EPSS score of 16.25% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2011-4362

MEDIUMEPSS 97th pctl

5.0

CVSS v2

NVD

Description

Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

16.25%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.