CVE-2026-112271
libdisplay-info through 0.4.0 Heap Out-of-Bounds Read via DisplayID v1 Parser
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-125 |
| Vendor | emersion |
| Product | libdisplay-info |
| Published | Oct 19, 2026 |
| Last Updated | Oct 19, 2026 |
Stay Ahead of the Next One
Get instant alerts for emersion libdisplay-info
Be the first to know when new medium vulnerabilities affecting emersion libdisplay-info are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
emersion / libdisplay-info
0 ≤ 0.4.0
References
hackmd.io: https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read gitlab.freedesktop.org: https://gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid.c#L603-L689 gitlab.freedesktop.org: https://gitlab.freedesktop.org/emersion/libdisplay-info vulncheck.com: https://www.vulncheck.com/advisories/libdisplay-info-through-0.4.0-heap-out-of-bounds-read-via-displayid-v1-parser hackmd.io: https://hackmd.io/@haindpwn/cve-2026-112271-112272-libdisplay-info-displayid-datablock-overrun-oob-read
Credits
HaiND from the Post and Telecommunication Institute of Technology