CVE-2026-53137: drm/amd/display: Clamp HDMI HDCP2 rx_id_list read to buffer size

highCVSS 7.1CVE-2026-53137

CSIRTS triage

Other

What: The vulnerability involves clamping the HDMI HDCP2 rx_id_list read to the buffer size.
Who is affected: Deployments using the affected drm/amd/display component.
Urgency: Remediation is high urgency due to the potential for system instability.
Action: Apply the necessary patches to ensure proper clamping.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.1
Published: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53137

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-531370.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53137	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownexploitedUSN-8728-1: Linux kernel (GCP) vulnerabilitiesubuntu
unknownexploitedUSN-8727-1: Linux kernel (OEM) vulnerabilitiesubuntu
unknownexploitedUSN-8726-1: Linux kernel vulnerabilitiesubuntu

Recent advisories for drm/amd/display

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-89773: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Skip Upda…nvd · 2026-09-11
unknownCVE-2026-80705: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: check if …nvd · 2026-08-28
unknownCVE-2026-80704: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: use prope…nvd · 2026-08-28
unknownCVE-2026-80542: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL …nvd · 2026-08-26
unknownCVE-2026-74732: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check for…nvd · 2026-08-22
highCVE-2026-74449: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix divid…nvd · 2026-08-15