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CVE-2014-2900

16
FAUCET Score

CVE-2014-2900 describes a vulnerability in wolfSSL CyaSSL versions prior to 2.9.4, where the software fails to properly validate X.509 certificates containing unknown critical extensions. This flaw allows man-in-the-middle attackers to spoof servers using specially crafted X.509 certificates, impacting the yassl and cyassl products. The vulnerability has a CVSS score of 5.8, indicating a medium severity. An attacker can exploit this remotely over the network with medium attack complexity, potentially leading to partial compromise of confidentiality and integrity. There is no evidence of active exploitation, nor are there known public exploit codes available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting it has not garnered significant attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.9.0CPE matchmatch criteria
cpe:2.3:a:yassl:cyassl:*:*:*:*:*:*:*:*
0.2.0CPE matchmatch criteria
cpe:2.3:a:yassl:cyassl:0.2.0:*:*:*:*:*:*:*
0.3.0CPE matchmatch criteria
cpe:2.3:a:yassl:cyassl:0.3.0:*:*:*:*:*:*:*
0.4.0CPE matchmatch criteria
cpe:2.3:a:yassl:cyassl:0.4.0:*:*:*:*:*:*:*
0.5.0CPE matchmatch criteria
cpe:2.3:a:yassl:cyassl:0.5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 16th percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

seclists.org / oss-sec/2014/q2/126
seclists.org / oss-sec/2014/q2/130
secunia.com / advisories/57743
Vendor Advisory
security.gentoo.org / glsa/201612-53
securityfocus.com / bid/66780
wolfssl.com / yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html
Vendor Advisory
wolfssl.com / yaSSL/Docs-cyassl-changelog.html