CVE-2016-6890
Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary...
Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary code via a crafted Subject Alt Name in an X.509 certificate.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary code via a crafted Subject Alt Name in an X.509 certificate.
- Record
CVE-2016-6890- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary code via a crafted Subject Alt Name in an X.509 certificate.
- Record
CVE-2016-6890- Updated
- 2026-11-02
EUVDEUVD-2016-7775 No score
Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary code via a crafted Subject Alt Name in an X.509 certificate.
- Record
EUVD-2016-7775- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p9v9-mf59-wf95
Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary...
Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary code via a crafted Subject Alt Name in an X.509 certificate.
- Record
GHSA-p9v9-mf59-wf95- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- 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-2016-6890 is a critical vulnerability (CVSS 9.8) in Matrixssl, published January 5, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.38%, the 93rd percentile. No source names a fixed version.
References
github.com/matrixssl/matrixssl/blob/3-8-6-open/CHANGES.md
kb.cert.org/vuls/id/396440
securityfocus.com/bid/93498
tripwire.com/state-of-security/security-data-protection/cyber-security/flawed-matrixssl-code-highlights-need-for-better-iot-update-practices
nvd.nist.gov/vuln/detail/CVE-2016-6890