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

  - HarfBuzz is a text shaping engine. Prior to version 12.3.0, a null pointer dereference vulnerability     exists in the SubtableUnicodesCache::create function located in src/hb-ot-cmap-table.hh. The function     fails to check if hb_malloc returns NULL before using placement new to construct an object at the returned     pointer address. When hb_malloc fails to allocate memory (which can occur in low-memory conditions or when     using custom allocators that simulate allocation failures), it returns NULL. The code then attempts to     call the constructor on this null pointer using placement new syntax, resulting in undefined behavior and     a Segmentation Fault. This issue has been patched in version 12.3.0. (CVE-2026-22693)

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

Detections

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Linux Distros Unpatched Vulnerability : CVE-2026-22693

medium Nessus Plugin ID 282558

Version 1.6

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.6 Jan 30, 2026, 4:02 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601301602
Version 1.5 Jan 21, 2026, 5:00 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601211700
Version 1.4 Jan 16, 2026, 10:12 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601162212
Version 1.3 Jan 15, 2026, 2:04 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601151404
Version 1.2 Jan 14, 2026, 5:08 AM CVSS metrics ("CVSSv2 score" set to 4.3) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P") CVSSv2 severity (based on CVE-2026-22693, severity decreased from "High" to "Medium") Detection (updated detection logic) Plugin metadata Plugin Feed: 202601140508
Version 1.1 Jan 10, 2026, 7:58 PM New Plugin Feed: 202601101958