CVE Watch13 de nov. de 2026

CVE-2026-129122

C-Kermit 6.0.192 before 11.1.515 contains a buffer overflow vulnerability in tn_snenv() in ckctel.c that allows malicious Telnet servers to

CVSS

7.5

Alta

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 13 de nov. de 2026 · Última mod.: 13 de nov. de 2026 · CWE-787

EPSS · 30d

Ainda não há histórico EPSS suficiente.

Descrição técnica

C-Kermit 6.0.192 before 11.1.515 contains a buffer overflow vulnerability in tn_snenv() in ckctel.c that allows malicious Telnet servers to corrupt client memory via crafted NEW-ENVIRON SEND subnegotiation. Malicious or machine-in-the-middle servers can send oversized variable names before authentication, overflowing a 16-byte stack buffer and a miscomputed heap buffer to corrupt stack and heap memory.

Referências oficiais

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