What’s Vulnerable › Vulnerabilities

CVE-2026-112272: libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-19 · updated 2026-10-19
• Weakness: CWE-125

Description

Libdisplay-info 0.4.0 contains a heap out-of-bounds read vulnerability in the DisplayID v2 section parser in displayid2.c that allows attackers to read past the EDID buffer via oversized data block lengths. Attackers can supply a crafted EDID from a malicious monitor, KVM, capture device, or file to over-advance the parse cursor and crash applications.

Affected products

• emersion libdisplay-info: 0.4.0

References

• https://gitlab.freedesktop.org/emersion/libdisplay-info
• https://gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid2.c#L84-L143
• https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read
• https://www.vulncheck.com/advisories/libdisplay-info-0.4.0-heap-out-of-bounds-read-via-displayid-v2-parser
• https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read

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