---
id: CVE-2026-112272
title: libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser
summary: >-
  Libdisplay-info 0.4.0 contains a heap out-of-bounds read vulnerability in the
  DisplayID v2 section parser in displayid2.c that allows attackers to read past
  the EDID buffer via oversized data block lengths. Attackers can supply a
  crafted…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-125
vendor: emersion
product: libdisplay-info
affected:
  - libdisplay-info 0.4.0
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T13:55:20.018Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112272'
references:
  - url: >-
      https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read
  - url: >-
      https://gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid2.c#L84-L143
  - url: 'https://gitlab.freedesktop.org/emersion/libdisplay-info'
  - url: >-
      https://www.vulncheck.com/advisories/libdisplay-info-0.4.0-heap-out-of-bounds-read-via-displayid-v2-parser
    label: >-
      VulnCheck Advisory: libdisplay-info 0.4.0 Heap Out-of-Bounds Read via
      DisplayID v2 Parser
tags:
  - cve.org
ingestedAt: '2026-10-19T14:30:01.073Z'
---

## Overview

Libdisplay-info 0.4.0 contains a heap out-of-bounds read vulnerability in the DisplayID v2 section parser in displayid2.c that allows attackers to read past the EDID buffer via oversized data block lengths. Attackers can supply a crafted EDID from a malicious monitor, KVM, capture device, or file to over-advance the parse cursor and crash applications.

## Affected

- `libdisplay-info 0.4.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.