Vulnerability · Published Oct 19, 2026 · Assigned by VulnCheck
CVE-2026-112272libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser
Medium 5.5
In plain English
A medium-severity out-of-bounds read in libdisplay-info from emersion. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 90.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| emersion | libdisplay-info | 0.4.0 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read third-party-advisory
- https://gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid2.c#L84-L143 technical-description
- https://gitlab.freedesktop.org/emersion/libdisplay-info product
- VulnCheck Advisory: libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser third-party-advisory