CVE-2026-20753: Integer Overflow
Integer overflow in the UEFI firmware for the Slim Bootloader may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable local code execution. 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 (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20753?
CVE-2026-20753 is rated with a severity level that indicates potential for escalation of privilege due to an integer overflow in the UEFI firmware.
How do I fix CVE-2026-20753?
The recommended fix for CVE-2026-20753 involves updating to the latest version of the Intel Slim Bootloader firmware that addresses the integer overflow issue.
Who is affected by CVE-2026-20753?
Users of the Intel Slim Bootloader firmware are primarily affected by CVE-2026-20753, especially those with privileged access.
What types of attacks are possible with CVE-2026-20753?
CVE-2026-20753 may allow local code execution through a low complexity attack when combined with privileged user access.
Can CVE-2026-20753 be exploited remotely?
CVE-2026-20753 requires local access for exploitation, as it involves vulnerabilities in the UEFI firmware's integer overflow.