RHEL 8 : mingw-libtiff (RHSA-2026:14929)

high Nessus Plugin ID 313168

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Synopsis

The remote Red Hat host is missing a security update for mingw-libtiff.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:14929 advisory.

The libtiff package contains a library of functions for manipulating TIFF (Tagged Image File Format) image format files. TIFF is a widely used file format for bitmapped images. TIFF files usually end in the .tif extension and they are often quite large. The libtiff package should be installed if you need to manipulate TIFF format image files.

Security Fix(es):

* libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing (CVE-2026-4775)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the RHEL mingw-libtiff package based on the guidance in RHSA-2026:14929.

Plugin Details

Severity: High

ID: 313168

File Name: redhat-RHSA-2026-14929.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/7/2026

Updated: 5/7/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.95

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-4775

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:mingw-libtiff, cpe:/o:redhat:rhel_eus:8.10, p-cpe:/a:redhat:enterprise_linux:mingw32-libtiff, p-cpe:/a:redhat:enterprise_linux:mingw32-libtiff-static, p-cpe:/a:redhat:enterprise_linux:mingw64-libtiff, p-cpe:/a:redhat:enterprise_linux:mingw64-libtiff-static

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-4775

CWE: 190

RHSA: 2026:14929

Detections

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