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CVE-2026-129116VulnerabilityPublished

C-Kermit from 7.0.197 before 11.1.515 contains an authentication bypass vulnerability in the IKSD SSL build that

Source GCVE Database

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Authoritative record:CVE-2026-129116· High 7.7

Not known to be exploited · CVSS 7.7 High : upgrade to 11.1.515 soon.

Data as of 13 Nov 2026, 20:01 UTC

CVSS 4.0 base score
7.7High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.07.7
CNA (VulnCheck)CVSS 3.17.5
Patch
Available – fixed in 11.1.515
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade C-Kermit to 11.1.515.

Affected software

ProductAffectedFixed in
OpenKermitC-KermitAffected
  • >=7.0.197 <11.1.515
Fixed in
  • 11.1.515
GitHubC-Kermitpkg:github/C-KermitOther threatsAffected
  • >=7.0.197 <11.1.515
Fixed in
  • 11.1.515

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in C-Kermit version 11.1.515 and later. Users should upgrade to version 11.1.515 or newer to remediate this vulnerability. No other mitigation or workaround is indicated in the provided data.

Description

C-Kermit versions from 7.0.197 up to but not including 11.1.515 contain an authentication bypass vulnerability in the IKSD SSL build. This flaw causes the Telnet authentication state to remain at AUTH_VALID after a refused certificate login. An attacker possessing a trusted certificate mapped to a refused account can exploit this to log in as any other account with any password, gaining shell access to that account.

References

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