CVE-2026-56288mediumCWE-476

CVE-2026-56288: fallo de gravedad media en GNU patch

NULL Pointer Dereference in GNU patch

Publicada el

Seguir esta CVE+ Monitorear patch+ Monitorear patch

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 4.6epss 0.1%
GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file. Improper handling of consecutive end-of-file newline markers can corrupt internal hunk (single block of changes in diff) data structures, causing the application to pass a NULL pointer to fwrite() during patch processing. An attacker can trigger this condition with a malicious patch file, causing the utility to crash and resulting in a denial of service. This issue has been fixed in the commit e6d6a4e021660679d7fc9150f981d4920f722313
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Productos afectados
GNU · patch
CVEs relacionadas — GNU patch

En el mismo producto, de las más peligrosas a las menos.

CVE-2026-56289MEDIUMLoop with Unreachable Exit Condition in GNU patchEPSS 0.1%