Out-of-bounds write in Intel Server Board D50DNP and Intel Server Board M50FCP UEFI - CVE-2026-56435
Published: November 13, 2026
Vulnerability identifier: #VU166148
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-56435
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the XmlCliCommonDxe. A local user can trigger an out-of-bounds write and execute arbitrary code on the target system.
Affected software
Intel Server Board D50DNP
Intel Server Board M50FCP UEFI
Intel Server Board M50FCP UEFI
How to mitigate CVE-2026-56435
Install updates from vendor's website.
Intel Server Board D50DNP - update to R01.02.0006
Intel Server Board M50FCP UEFI - update to R01.02.0006
Intel Server Board M50FCP UEFI - update to R01.02.0006