CVE Watch20 ago 2026

CVE-2026-65610

nnn stores homelen variable as uchar_t, which can only represent values in the range 0-255. An attacker who can influence the victim's execu

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

0-100

Publicado: 19 ago 2026 · Última mod.: 20 ago 2026 · CWE-197

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

nnn stores homelen variable as uchar_t, which can only represent values in the range 0-255. An attacker who can influence the victim's execution environment can provide an arbitrary HOME path with length that is truncated to 0. The expression (homelen - 1) is promoted to signed int and becomes -1 and producing an out-of-bounds read and an out-of-bounds write one byte before the path buffer. Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.

Referencias oficiales

cert.plhttps://cert.pl/en/posts/2026/08/CVE-2026-65609

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