Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-4775

high Nessus Plugin ID 303486

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

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

 - A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution. (CVE-2026-4775)

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

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-4775

https://security-tracker.debian.org/tracker/CVE-2026-4775

Plugin Details

Severity: High

ID: 303486

File Name: unpatched_CVE_2026_4775.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 3/24/2026

Updated: 3/25/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.4

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

CVSS Score Source: CVE-2026-4775

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.1

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:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:compat-libtiff3, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:mingw-libtiff, p-cpe:/a:redhat:enterprise_linux:libtiff-tools, p-cpe:/a:centos:centos:mingw64-libtiff-static, p-cpe:/a:centos:centos:libtiff-static, p-cpe:/a:redhat:enterprise_linux:mingw-libtiff, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:mingw32-libtiff, p-cpe:/a:redhat:enterprise_linux:libtiff-static, cpe:/o:redhat:enterprise_linux:9, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:mingw64-libtiff-static, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:centos:centos:mingw64-libtiff, p-cpe:/a:debian:debian_linux:tiff, p-cpe:/a:centos:centos:libtiff-tools, p-cpe:/a:redhat:enterprise_linux:compat-libtiff3, p-cpe:/a:redhat:enterprise_linux:mingw32-libtiff-static, p-cpe:/a:centos:centos:mingw32-libtiff, p-cpe:/a:centos:centos:libtiff-devel, p-cpe:/a:centos:centos:libtiff, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:libtiff-devel, p-cpe:/a:centos:centos:mingw32-libtiff-static, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:mingw64-libtiff, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:redhat:enterprise_linux:libtiff

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-4775