CVE-2024-21781 | BDVDB-2026-248446 Detail

UEFI firmware for some Intel(R) Processors

Description#

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to enable information disclosure or denial of service via local access.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact high. Attack vector: local.

Weaknesses#

CWE-20 Improper Input Validation

References#

Exploit#

No public exploit known

History#

Version 12024-09-16Record published in the CVE List.
Version 22025-11-03Most recent update recorded in the CVE List.

Published

Published: 2024-09-16
Last modified: 2025-11-03

Vendor information

Vendor: Not stated
Product: UEFI firmware for some Intel(R) Processors

Score

7.2 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 5.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Improper Input Validation

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
See references
Fixed
Not stated

Scoring System

CVSS v4.0

7.0 High

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Attack Requirements	Present
Privileges Required	High
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	None
Vulnerable System Availability	High
Subsequent System Confidentiality	High
Subsequent System Integrity	None
Subsequent System Availability	High

CVSS v3.1

7.2 High

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:H

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	High
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).