Threats Tagged 'cve-2026-20707'

This security update addresses multiple vulnerabilities in Intel CPU microcode, including privilege escalation issues in Ring 0 and System Management Mode (SMM). The update includes microcode releases from Intel dated 2026-08-12, 2026-08-11, 2026-05-12, and 2026-02-27, covering a range of Intel processors such as Core Ultra and Xeon Scalable series. The update fixes functional issues and security vulnerabilities identified by Intel security advisories INTEL-SA-01379, INTEL-SA-01404, INTEL-SA-01420, INTEL-SA-01423, INTEL-SA-01428, INTEL-SA-01435, INTEL-SA-01441, INTEL-SA-01442, and INTEL-SA-01443. Red Hat has issued an important security advisory for microcode_ctl packages in Red Hat Enterprise Linux 8, providing updated microcode to mitigate these vulnerabilities.

Hardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivileged software may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.