CVE-2014-2900
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical...
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.
Exploit likelihood
What each source reports
NVD Score used
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.
- Record
CVE-2014-2900- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.
- Record
CVE-2014-2900- Updated
- 2026-11-02
EUVDEUVD-2014-2923 No score
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.
- Record
EUVD-2014-2923- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rjjg-j224-h375 No score
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical...
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.
- Record
GHSA-rjjg-j224-h375- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2014-2900 is a medium vulnerability (CVSS 5.8) in Yassl Cyassl, published April 22, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.96%, the 61st percentile. No source names a fixed version.
References
wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html
security.gentoo.org/glsa/201612-53
seclists.org/oss-sec/2014/q2/126
securityfocus.com/bid/66780
secunia.com/advisories/57743
nvd.nist.gov/vuln/detail/CVE-2014-2900
github.com/advisories/GHSA-rjjg-j224-h375