CVE-2026-112271
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. 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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read (third-party-advisory)
- gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid.c (technical-description)
- gitlab.freedesktop.org/emersion/libdisplay-info (product)
- www.vulncheck.com/advisories/libdisplay-info-through-0.4.0-heap-out-of-bounds-r… (third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
Frequently asked questions
- What is CVE-2026-112271?
- CVE-2026-112271 is a medium-severity vulnerability, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-10-19.
- How severe is CVE-2026-112271?
- Medium severity. CVSS v3 base score is 5.5 out of 10.