CVE-2026-112271 libdisplay-info through 0.4.0 Heap Out-of-Bounds Read via DisplayID v1 Parser
Attackers can cause a crash in libdisplay-info by supplying a crafted EDID, leading to a heap out-of-bounds read.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112271?
CVE-2026-112271 is a medium-severity memory corruption vulnerability in emersion libdisplay-info, published on 19 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-112271?
How do I fix CVE-2026-112271?
No fix has been published for CVE-2026-112271 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-112271 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112271 exists.
Sources
Also known as GHSA-3gg9-cc9m-vj8c.