Is CVE-2010-4334 in the CISA KEV catalog?

No. CVE-2010-4334 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2010-4334?

CVE-2010-4334 has a CVSS v2 base score of 4.0 (MEDIUM).

What is the EPSS score for CVE-2010-4334?

CVE-2010-4334 has an EPSS score of 1.78% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2010-4334?

Upgrade libio-socket-ssl-perl on debian 11 to 1.35-1 or later.

CVE & CISA-KEV Catalog

CVE-2010-4334

MEDIUMEPSS 76th pctl

4.0

CVSS v2

NVD

Description

The IO::Socket::SSL module 1.35 for Perl, when verify_mode is not VERIFY_NONE, fails open to VERIFY_NONE instead of throwing an error when a ca_file/ca_path cannot be verified, which allows remote attackers to bypass intended certificate restrictions.

CWE-310Cryptographic Issues

How to fix

Remediation Available

libio-socket-ssl-perlDebian

Fixed in:1.35-1CVE-2010-4334

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

1.78%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

bugs.debian.org

Vendor Advisory1

secunia.com

Other references9

Related Vulnerabilities

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

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-3566	Low	3.4	100%	-	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2015-0204	Medium	4.3	99%	-	Fix
CVE-2016-2107	Medium	5.9	89%	-	Fix
CVE-2016-0800	Medium	5.9	82%	-	Fix
CVE-2014-8684	Critical	9.8	72%	-	-

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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.