CVE-2019-9689
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow...
CVE-2019-9689 is a high vulnerability (CVSS 7.5) in Axtls Project Axtls, published December 3, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.48%, the 73rd percentile. No source names a fixed version.
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
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
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
- Record
CVE-2019-9689- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List No score
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
- Record
CVE-2019-9689- Updated
- 2026-11-02
EUVDEUVD-2019-19055 No score
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
- Record
EUVD-2019-19055- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cj4c-7qch-h3mh No score
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow...
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
- Record
GHSA-cj4c-7qch-h3mh- Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-9689
process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.
- Record
UBUNTU-CVE-2019-9689- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
axtls.sourceforge.net
telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842
seclists.org/bugtraq/2019/Nov/44
packetstormsecurity.com/files/155500/axTLS-2.1.5-Denial-Of-Service.html
nvd.nist.gov/vuln/detail/CVE-2019-9689
github.com/advisories/GHSA-cj4c-7qch-h3mh
ubuntu.com/security/CVE-2019-9689
cve.org/CVERecord?id=CVE-2019-9689