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.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-7ab20715e6 advisory.

    Update to 5.3 (#2517126)


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-d5ab08d6bf advisory.

    Update to 5.3 (#2517126)


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-65610)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
339702	Fedora 43 : nnn (2026-7ab20715e6)	Nessus	Fedora Local Security Checks	Local	low
339694	Fedora 44 : nnn (2026-d5ab08d6bf)	Nessus	Fedora Local Security Checks	Local	low
338242	Linux Distros Unpatched Vulnerability : CVE-2026-65610	Nessus	Misc.	Local	low

Detections

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CVE-2026-65610

low

Tenable Plugins

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