Bug 2569936 (CVE-2026-55716)

Summary: CVE-2026-55716 Intel Server Board D50DNP: Intel Server Board M50FCP: Intel Server Board D50DNP and M50FCP: Information disclosure via out-of-bounds read in CheckUefiVgaMode
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Unified Extensible Firmware Interface (UEFI) for Intel Server Board D50DNP and Intel Server Board M50FCP. An out-of-bounds read vulnerability in the CheckUefiVgaMode function allows a local attacker with administrative privileges to read data outside intended memory boundaries. This issue can lead to unauthorized information disclosure.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-10 19:25:46 UTC 
Out-of-bounds read in the CheckUefiVgaMode for the Intel(R) Server Board D50DNP and Intel(R) Server Board M50FCP within Ring 0 UEFI may allow an information disclosure. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.