vulnwire
8.7high

CVE-2025-20105

Improper input validation in some UEFI firmware SMM module for the Intel(R) reference platforms may allow an escalation of privilege.

Published 7 mo ago · modified 4 mo ago · JSON

CVSS
8.7
v4.0 · CNA
CISA KEV
No
not known exploited
EPSS
0.1%
percentile 3%
Public exploits
0
none known

Improper input validation in some UEFI firmware SMM module for the Intel(R) 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.

CISA SSVC assessment

Exploitation
none
Automatable
no
Technical impact
total
Assessed
7 mo ago

Exploit prediction (EPSS)

0.14% probability of exploitation in the next 30 days, higher than 3% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA4.08.7CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CNA4.08.7CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • n/a Intel(R) 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.

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • intel.com /content/www/us/en/security-center/advisory/intel-sa-01234.html

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.