CVE-2026-112271: Out-of-bounds Read in emersion libdisplay-info
Description
libdisplay-info through 0.4.0 contains a heap out-of-bounds read vulnerability in the DisplayID v1 section parser in displayid.c that occurs when a data block's declared length exceeds the section. Attackers can supply a crafted EDID from a malicious monitor, KVM, capture device, or EDID file to make is_all_zeroes read past the buffer, causing a possible crash.
CVSS v4.0
Score 6.8medium
Affected software
emersion
libdisplay-info
pkg:github/emersion/libdisplay-infoRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-112271 is a heap out-of-bounds read vulnerability in libdisplay-info through version 0.4.0. The flaw exists in the DisplayID v1 section parser within displayid.c, where the function is_all_zeroes reads beyond the buffer if a data block's declared length is larger than the section size. An attacker can exploit this by supplying a maliciously crafted EDID from a monitor, KVM, capture device, or EDID file, leading to a possible crash of the affected software.
Potential Impact
The vulnerability can cause a heap out-of-bounds read, which may lead to application crashes. There is no indication of code execution or data corruption beyond the crash. The attack vector requires local access or user interaction with a crafted EDID source.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid using untrusted or malicious EDID data sources to prevent triggering the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-19T13:25:27.630Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad623792cdf04f6565c880a
Added to database: 10/19/2026, 14:04:41 UTC
Last enriched: 10/19/2026, 14:18:55 UTC
Last updated: 10/19/2026, 14:49:14 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.