CVE-2026-129123
C-Kermit 8.0.200 before 11.1.515 contains a buffer overflow vulnerability in getreply() in ckcftp.c that allows malicious FTP servers to ove
CVSS
8.8
Alto
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 13 nov 2026 · Última mod.: 13 nov 2026 · CWE-120
Sin historial EPSS suficiente todavía.
C-Kermit 8.0.200 before 11.1.515 contains a buffer overflow vulnerability in getreply() in ckcftp.c that allows malicious FTP servers to overwrite client memory by sending overlong security replies. Attackers controlling or intercepting an FTP server can send long PBSZ replies after AUTH TLS, or long ADAT replies in GSSAPI, Kerberos 4, and SRP builds, overflowing the static reply_buf with attacker-controlled bytes.
- github.comhttps://github.com/OpenKermit/ckermit/blob/v11.0.514/ckcftp.c#L11161
- github.comhttps://github.com/OpenKermit/ckermit/commit/39ab009a365b97632e9975e1266fa618c4bdc59f
- github.comhttps://github.com/OpenKermit/ckermit/commit/bec28a4d544031fa07a07aacba3df5dd1202ef69
- github.comhttps://github.com/OpenKermit/ckermit/releases/tag/v11.1.515
- github.comhttps://github.com/OpenKermit/ckermit/security/advisories/GHSA-c5px-7h4c-gj8p
- www.vulncheck.comhttps://www.vulncheck.com/advisories/c-kermit-8.0.200-before-11.1.515-ftp-client-buffer-overflow-via-pbsz-and-adat-replies
- github.comhttps://github.com/OpenKermit/ckermit/security/advisories/GHSA-c5px-7h4c-gj8p
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