CVE-2026-4367

MediumCVSS 5.5/10Last modified Jul 28, 2026

Description

A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the `xpmNextWord()` function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Jun 16, 2026
Last modified
Jul 28, 2026
NVD status
Awaiting Analysis

Related CVEs from 2026

CVE-2026-436708.8A Content Security Policy bypass was addressed with improved enforcement in AudioWorklet contexts. This issue is fixed in Safari 26.5, iOS 1CVE-2026-436727.1An authorization issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOSCVE-2026-436737.8The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOCVE-2026-436744.6An authentication issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27. An attacker with physicalCVE-2026-436766.5An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7CVE-2026-436776.5An out-of-bounds write issue was addressed by removing the vulnerable code. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8,CVE-2026-436785.3An unauthenticated remote peer can crash any NIOWebSocket-based server (including Vapor and Hummingbird) with a single 11-byte frame sent afCVE-2026-436792.4This issue was addressed with improved permissions checking. This issue is fixed in watchOS 26.4. An attacker with physical access to a lockCVE-2026-43687.7Race Condition in NetScaler ADC and NetScaler Gateway when appliance is configured as Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA vCVE-2026-436807.2A Remote Code Execution vulnerability in Claris FileMaker Cloud allowed a user with Admin Console privileges to bypass a front-end restrictiCVE-2026-436817.1A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS TahoeCVE-2026-436829.8The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A
CVE-2026-4367: Medium severity, CVSS 5.5 | Vulnix