CVE & CISA-KEV Catalog

CVE-2013-4545

MEDIUMEPSS 86th pctl
4.3
CVSS v2
NVD

Description

cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

How to fix

Remediation Available
curlDebian
Fixed in:7.33.0-1CVE-2013-4545
Fixed in:7.33.0-1CVE-2013-4545
Fixed in:7.33.0-1CVE-2013-4545
Fixed in:7.33.0-1CVE-2013-4545

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.08%probability of exploitation in 30 days
86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Related Vulnerabilities

Other CWE-310 (Cryptographic Issues) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-3566Low3.4100%-Fix
CVE-2015-4000Low3.7100%-Fix
CVE-2015-0204Medium4.399%-Fix
CVE-2016-2107Medium5.989%-Fix
CVE-2016-0800Medium5.982%-Fix
CVE-2014-8684Critical9.872%--
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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.