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CVE-2010-4334

17
FAUCET Score

CVE-2010-4334 describes a vulnerability in the Perl IO::Socket::SSL module versions prior to 1.35. When configured to verify SSL certificates (verify_mode not VERIFY_NONE), the module fails open to VERIFY_NONE if it cannot verify a ca_file or ca_path, effectively bypassing intended certificate restrictions. This vulnerability has a CVSS score of 4.0, indicating a medium severity with network access, high attack complexity, and potential for partial confidentiality and integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.35CPE matchmatch criteria
cpe:2.3:a:io-socket-ssl:io-socket-ssl:1.35:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:H/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.78%
Probability of exploitation in next 30 days
EPSS Percentile
75.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0178 is in the 55th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: perl-IO-Socket-SSL

Vendor Advisories (1)

redhatCVE-2010-4334Low

perl-IO-Socket-SSL: ignores user request for peer verification

Dec 6, 2010

References

bugs.debian.org / cgi-bin/bugreport.cgi
Patch
cpansearch.perl.org / src/SULLR/IO-Socket-SSL-1.35/Changes
lists.fedoraproject.org / pipermail/package-announce/2010-December/052594.html
lists.fedoraproject.org / pipermail/package-announce/2010-December/052601.html
osvdb.org / 69626
secunia.com / advisories/42508
Vendor Advisory
secunia.com / advisories/42757
mandriva.com / security/advisories
openwall.com / lists/oss-security/2010/12/09/8
openwall.com / lists/oss-security/2010/12/24/1
securityfocus.com / bid/45189