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

  - zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0,     3.1.1, 3.2.0 and 3.2.1 contain a buffer overflow vulnerability in the Zlib::GzipReader. The     zstream_buffer_ungets function prepends caller-provided bytes ahead of previously produced output but     fails to guarantee the backing Ruby string has enough capacity before the memmove shifts the existing     data. This can lead to memory corruption when the buffer length exceeds capacity. This issue has been     fixed in versions 3.0.1, 3.1.2 and 3.2.3. (CVE-2026-27820)

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

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-27820

medium Nessus Plugin ID 306840

Version 1.9

Version 1.8

Version 1.7

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.9 Aug 4, 2026, 11:08 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202608041108
Version 1.8 Jul 17, 2026, 5:47 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607170547
Version 1.7 Jun 6, 2026, 9:02 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606060902
Version 1.4 Apr 29, 2026, 12:50 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202604291250
Version 1.3 Apr 20, 2026, 10:26 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202604202226
Version 1.2 Apr 17, 2026, 10:08 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202604172208
Version 1.1 Apr 17, 2026, 5:33 AM New Plugin Feed: 202604170533