MEDIUMCVSS v3.1 6.8Vulnerability
CVE-2026-129117
C-Kermit 8.0.200 before 11.1.515 contains an improper certificate validation vulnerability that allows machine-in-the-middle attackers to impersonate Telnet servers because ssl_reply() never calls ssl_check_server_name(). Attackers can refuse START-TLS, offer Telnet AUTHENTICATION SSL, and present any trusted CA certificate to capture user credentials and session data.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-14T00:40:25.638091+00:00
- Cvss score
- 6.8
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-11-14T00:50:05+00:00
- Score
- 6.8
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-129117
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- First seen by Signal
- 2026-11-13T17:31:47+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- Published at
- 2026-11-13T17:17:28.447
- Last modified
- 2026-11-13T22:14:15.437
Related Entities (1)
HAS_WEAKNESS (1)
Related research
Explore deeper with Ninja Signal's threat intelligence graph