CFITSIO through 4.7.0 contains an out-of-bounds write vulnerability in ffgcls2() in getcols.c that trusts attacker-controlled heap descriptor lengths for variable-length string columns. Attackers can supply a crafted FITS file that overflows a fixed 28,800-byte stack buffer and the caller's string array, enabling arbitrary code execution.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-043f4fc6f5 advisory.

    Backport fix for CVE-2026-115504.

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 multiple vulnerabilities as referenced in the FEDORA-2026-723469d025 advisory.

    Backport fix for CVE-2026-115504.

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

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

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-5bfcad5462 advisory.

    Backport fix for CVE-2026-115504.

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

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

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - CFITSIO through 4.7.0 contains an out-of-bounds write vulnerability in ffgcls2() in getcols.c that trusts
    attacker-controlled heap descriptor lengths for variable-length string columns. Attackers can supply a
    crafted FITS file that overflows a fixed 28,800-byte stack buffer and the caller's string array, enabling
    arbitrary code execution. (CVE-2026-115504)

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

  - CFITSIO through 4.7.0 contains an out-of-bounds write vulnerability in ffgcls2() in getcols.c that trusts     attacker-controlled heap descriptor lengths for variable-length string columns. Attackers can supply a     crafted FITS file that overflows a fixed 28,800-byte stack buffer and the caller's string array, enabling     arbitrary code execution. (CVE-2026-115504)

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

ID	Name	Product	Family	Type	Severity
377612	Fedora 43 : mingw-cfitsio (2026-043f4fc6f5)	Nessus	Fedora Local Security Checks	Local	high
375414	Fedora 44 : mingw-cfitsio (2026-723469d025)	Nessus	Fedora Local Security Checks	Local	high
375393	Fedora 45 : mingw-cfitsio (2026-5bfcad5462)	Nessus	Fedora Local Security Checks	Local	high
477721	Echo: cfitsio: security update to 4.6.2-2+e1	Tenable Cloud Security	Echo Local Security Checks	Local	high
477721	Echo: cfitsio: security update to 4.6.2-2+e1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
371029	Linux Distros Unpatched Vulnerability : CVE-2026-115504	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-115504

high

Tenable Plugins

high

high

high

high

high

high