HIGH
wolfSSL (formerly CyaSSL) before 3.6.8 allows remote attackers to cause a denial of service (resource consumption or traffic amplification) via a crafted DTLS cookie in a ClientHello message
Published Jan 22, 2016
7.5
HIGHCVSS 3.0
EPSS 2.72%
Description
wolfSSL (formerly CyaSSL) before 3.6.8 allows remote attackers to cause a denial of service (resource consumption or traffic amplification) via a crafted DTLS cookie in a ClientHello message.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.72% 0.02720
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02720
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.72% (0.02720) | 85.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.72% (0.02720) | 84.05th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.90% (0.00901) | 73.56th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.35% (0.03354) | 78.70th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.97% (0.00968) | 75.02th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.78% (0.00781) | 82.09th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.78% (0.00781) | 80.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.78% (0.00781) | 78.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
Weaknesses (1)
References (3)
- http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html x_refsource_CONFIRM
- https://github.com/IAIK/wolfSSL-DoS x_refsource_MISCExploit
- https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html x_refsource_CONFIRMExploitVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html | x_refsource_CONFIRM | |
| https://github.com/IAIK/wolfSSL-DoS | x_refsource_MISCExploit | |
| https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html | x_refsource_CONFIRMExploitVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 22, 2016
Updated Aug 6, 2024
Reserved Sep 12, 2015
Link CVE-2015-6925
CISA Vulnrichment
Updated n/a