CVE-2026-107778: fallo de gravedad alta en MIT krb5
MIT krb5 through 1.22.2 NULL Pointer Dereference via krb5_rd_cred()
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.1epss 0.4%
MIT Kerberos 5 (krb5) through 1.22.2 contains a NULL pointer dereference in make_cred_list() in rd_cred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticket_info entries through gss_accept_sec_context() to crash GSS-API acceptor services, causing denial of service.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Productos afectados
MIT · krb5CVEs relacionadas — MIT krb5
En el mismo producto, de las más peligrosas a las menos.
Referencias
https://github.com/krb5/krb5https://github.com/krb5/krb5/blob/krb5-1.22.2-final/src/lib/krb5/krb/rd_cred.c#L77-L112https://github.com/krb5/krb5/commit/48afa9abb89ab2176bb20624d87d010b9984fc08https://github.com/krb5/krb5/commit/62196e2b269159a5465f5b8d0ed7cf6f29c3282ahttps://github.com/krb5/krb5/pull/1511https://www.vulncheck.com/advisories/mit-krb5-through-1.22.2-null-pointer-dereference-via-krb5-rd-cred