Privilege escalation in Intel Slim Bootloader

1) Improper authentication

EUVDB-ID: #VU109450

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-20083

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper authentication in the Intel Slim Bootloader. A local user can execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

12th Generation Intel Core Processors: All versions

Intel Pentium Gold Processor Series: All versions

Intel Celeron Processors: All versions

Intel Atom Processor E3900 Series: All versions

Intel Core Ultra Processors Series 2: All versions

Intel Xeon E Processors: All versions

10th Generation Intel Core Processors: All versions

Intel Xeon D Processors: All versions

Intel Core Ultra family: All versions

13th Generation Intel Core Processors: All versions

Intel Celeron 6305E/RE: All versions

Intel Core i3-1115GRE/G4E: All versions

Intel Core i5-1145G7E/GRE: All versions

Intel Core i7-1185G7E/GRE: All versions

Intel Celeron 6600HE/HLE: All versions

Intel Core i3-11100HE: All versions

Intel Core i5-11500HE: All versions

Intel Core i7-11850HE: All versions

Intel Xeon W-11155MLE/MRE: All versions

Intel Xeon W-11555MLE/MRE: All versions

Intel Xeon W-11865MLE/MRE: All versions

11th Generation Intel Core Processors: All versions

CPE2.3

• cpe:2.3:h:intel:12th_generation_intel_core_processors:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_pentium_gold_processor_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_celeron_processors:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_atom_processor_e3900_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_ultra_processors_series_2:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_xeon_e_processors:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:10th_generation_intel_core_processors:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_xeon_d_processors:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_ultra_family:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:13th_generation_intel_core_processors:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_celeron_6305e_re:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_i3-1115gre_g4e:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_i5-1145g7e_gre:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_i7-1185g7e_gre:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_celeron_6600he_hle:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_i3-11100he:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_i5-11500he:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_core_i7-11850he:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_xeon_w-11155mle_mre:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_xeon_w-11555mle_mre:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_xeon_w-11865mle_mre:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:11th_generation_intel_core_processors:*:*:*:*:*:*:*:*

External links

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01290.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.