CVE-2026-112271
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.
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
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 4.0
- 6.8 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.19% probability · 9th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Source
- disclosure@vulncheck.com
EPSS moved from 0.2% on 20 October 2026 to 0.2% on 26 October 2026.
References
- https://gitlab.freedesktop.org/emersion/libdisplay-info
- https://gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid.c#L603-L689
- https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read
- https://www.vulncheck.com/advisories/libdisplay-info-through-0.4.0-heap-out-of-bounds-read-via-displayid-v1-parser
- https://hackmd.io/@haindpwn/cve-2026-112271-112272-libdisplay-info-displayid-datablock-overrun-oob-read
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.