The latest security information on Intel® products.

Summary: 

Potential security vulnerabilities in UEFI for some Intel® reference platforms may allow escalation of privilege or information disclosure. Intel is releasing UEFI firmware updates to mitigate these potential vulnerabilities.

Vulnerability Details: 

CVEID:  CVE-2025-20105

Description: Improper input validation in some UEFI firmware SMM module for the Intel® reference platforms 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.

CVSS Base Score: 8.7 High

CVSS Vector:  CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVEID:  CVE-2025-20064

Description: Improper input validation in the UEFI FlashUcAcmSmm module for some Intel® reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable local code execution. This result may potentially occur via local access when attack requirements are not 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.

CVSS Base Score: 8.7 High

CVSS Vector:  CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVEID:  CVE-2025-20028

Description: Time-of-check time-of-use race condition in the WheaERST SMM module for some Intel® reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (none), integrity (none) and availability (none) impacts.

CVSS Base Score: 7.1 High

CVSS Vector:  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

CVEID:  CVE-2025-20068

Description: Improper input validation in the UEFI ImcErrorHandler module for some Intel® reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (none), integrity (none) and availability (none) impacts.

CVSS Base Score: 7.1 High

CVSS Vector:  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

CVEID:  CVE-2025-20027

Description: Improper input validation in the UEFI WheaERST module for some Intel® reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (none), integrity (none) and availability (none) impacts.

CVSS Base Score: 7.1 High

CVSS Vector:  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

CVEID:  CVE-2025-22850

Description: Time-of-check time-of-use race condition in the UEFI PdaSmm module for some Intel® reference platforms may allow an information disclosure. System software 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 not 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.

CVSS Base Score: 5.6 Medium

CVSS Vector:  CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVEID:  CVE-2025-22444

Description: Exposure of resource to wrong sphere in the UEFI PdaSmm module for some Intel® reference platforms may allow an information disclosure. System software 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 not 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.

CVSS Base Score: 5.6 Medium

CVSS Vector:  CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVEID:  CVE-2025-20005

Description: Improper buffer restrictions in some UEFI firmware for some Intel® reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable data manipulation. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

CVSS Base Score: 5.6 Medium

CVSS Vector:  CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

CVEID:  CVE-2025-20073

Description: Improper buffer restrictions in the UEFI DXE module for some Intel® Reference Platforms within UEFI may allow an information disclosure. System software 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 not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

CVSS Base Score: 1.8 Low

CVSS Vector:  CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected Products:

Recommendation:

Intel recommends that users of Intel® processors update to the latest version provided by the system manufacturer that addresses these issues.

Acknowledgements:

Intel would like to thank VUL_pwner (CVE-2025-20105, CVE-2025-20068, CVE-2025-20027, CVE-2025-20064, CVE-2025-20073, CVE-2025-20028) for reporting these issues.

The following issues were found internally by Intel employees.  Intel would like to thank Brent Holtsclaw (CVE-2025-22850, CVE-2025-22444) and Jorge E. Gonzalez (CVE-2025-20005).

Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are available.