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CVE-2026-4367 | X.org libXpm up to 3.5.4 xpmNextWord out-of-bounds (5448e1bd)

VulDB Archived Apr 23, 2026 ✓ Full text saved

A vulnerability identified as problematic has been detected in X.org libXpm up to 3.5.4 . The affected element is the function xpmNextWord . The manipulation leads to out-of-bounds read. This vulnerability is listed as CVE-2026-4367 . The attack must be carried out from within the local network. There is no available exploit. You should upgrade the affected component.

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✦ AI Summary · Claude Sonnet

VDB-359124 · CVE-2026-4367 · GCVE-0-2026-4367 X.ORG LIBXPM UP TO 3.5.4 XPMNEXTWORD OUT-OF-BOUNDS HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.4 $0-$5k 2.60+ Summaryinfo A vulnerability labeled as problematic has been found in X.org libXpm up to 3.5.4. The impacted element is the function xpmNextWord. The manipulation results in out-of-bounds. This vulnerability is cataloged as CVE-2026-4367. There is no exploit available. The affected component should be upgraded. Detailsinfo A vulnerability was found in X.org libXpm up to 3.5.4. It has been classified as problematic. Affected is the function xpmNextWord. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2026-4367. There are known technical details, but no exploit is available. Upgrading to version 3.5.19 eliminates this vulnerability. Applying the patch 5448e1bd is able to eliminate this problem. The bugfix is ready for download at gitlab.freedesktop.org. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Vendor X.org Name libXpm Version 3.5.0 3.5.1 3.5.2 3.5.3 3.5.4 License open-source Website Vendor: https://www.x.org/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.5 VulDB Meta Temp Score: 3.4 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Out-of-bounds CWE: CWE-125 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Partially Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: libXpm 3.5.19 Patch: 5448e1bd Timelineinfo 04/23/2026 Advisory disclosed 04/23/2026 +0 days VulDB entry created 04/23/2026 +0 days VulDB entry last update Sourcesinfo Vendor: x.org Advisory: seclists.org Status: Confirmed CVE: CVE-2026-4367 (🔒) GCVE (CVE): GCVE-0-2026-4367 GCVE (VulDB): GCVE-100-359124 Entryinfo Created: 04/23/2026 08:55 Changes: 04/23/2026 08:55 (54) Complete: 🔍 Cache ID: 99:2CF:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸

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