wolfSSL CyaSSL before 2.9.4 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a request for the peer certificate when a certificate parsing failure occurs or (2) a client_key_exchange message when the ephemeral key is not found
Published Apr 22, 2014
5.0
MEDIUMCVSS 2.0
EPSS 1.78%
Description
wolfSSL CyaSSL before 2.9.4 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a request for the peer certificate when a certificate parsing failure occurs or (2) a client_key_exchange message when the ephemeral key is not found.
Affected products
No data.
- ≤ 2.9.0
- 0.2.0
- 0.3.0
- 0.4.0
- 0.5.0
- 0.5.5
- 0.6.0
- 0.6.2
- 0.6.3
- 0.8.0
- 0.9.0
- 0.9.6
- 0.9.8
- 0.9.9
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.2
- 1.0.3
- 1.0.6
- 1.1.0
- 1.2.0
- 1.3.0
- 1.4.0
- 1.5.0
- 1.5.4
- 1.5.6
- 1.6.0
- 1.6.5
- 1.8.0
- 1.9.0
- 2.0.0
- 2.0.0
- 2.0.0
- 2.0.2
- 2.0.6
- 2.0.8
- 2.2.0
- 2.3.0
- 2.4.0
- 2.4.6
- 2.5.0
- 2.6.0
- 2.7.0
- 2.8.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.78% (0.01781) | 77.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.77% (0.01766) | 75.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.02% (0.01024) | 75.73th | v4 (v2025.03.14) |
| Dec 17, 2024 | 7.05% (0.07047) | 93.91th | v3 (v2023.03.01) |
| Dec 3, 2023 | 5.26% (0.05257) | 92.17th | v3 (v2023.03.01) |
| Oct 17, 2023 | 5.91% (0.05908) | 92.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.87% (0.05871) | 92.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (7)
- http://seclists.org/oss-sec/2014/q2/126 mailing-listx_refsource_MLIST
- http://seclists.org/oss-sec/2014/q2/130 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/57743 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.securityfocus.com/bid/66780 vdb-entryx_refsource_BID
- http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html x_refsource_CONFIRMVendor Advisory
- http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html x_refsource_CONFIRM
- https://security.gentoo.org/glsa/201612-53 vendor-advisoryx_refsource_GENTOO
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/oss-sec/2014/q2/126 | mailing-listx_refsource_MLIST | |
| http://seclists.org/oss-sec/2014/q2/130 | mailing-listx_refsource_MLIST | |
| http://secunia.com/advisories/57743 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.securityfocus.com/bid/66780 | vdb-entryx_refsource_BID | |
| http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201612-53 | vendor-advisoryx_refsource_GENTOO |
Change history (0)
No recorded changes yet.