CVE-2026-129117

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Source
https://cve.org/CVERecord?id=CVE-2026-129117
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-129117.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-129117
Aliases
Published
2026-11-13T16:23:48Z
Modified
2026-11-14T02:56:11Z
Severity
  • 7.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
C-Kermit 8.0.200 before 11.1.515 Missing Hostname Verification in AUTHENTICATION SSL
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-297"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/129xxx/CVE-2026-129117.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "8.0.200"
                        },
                        {
                            "fixed": "11.1.515"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "8.0.200"
                        },
                        {
                            "fixed": "11.1.515"
                        }
                    ],
                    "source": "DESCRIPTION"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/openkermit/ckermit

Affected ranges

Type
GIT
Repo
https://github.com/openkermit/ckermit
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0008b429e4fadc8ecfd3d7d661fd55d72e26d527
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "0008b429e4fadc8ecfd3d7d661fd55d72e26d527"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v11.*
v11.0
v11.0.502
v11.0.503
v11.0.504
v11.0.505
v11.0.506
v11.0.507
v11.0.508
v11.0.509
v11.0.510
v11.0.511
v11.0.512
v11.0.513
v11.0.514

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-129117.json"