CVE-2025-20077 | BDVDB-2026-289137 Detail

Intel(R) reference server platforms

Description#

Missing release of memory after effective lifetime in the UEFI OobRasMmbiHandlerDriver module for some Intel(R) reference server platforms may allow a privileged user to enable denial of service via local access.

Impact#

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

Weaknesses#

CWE-401 Missing Release of Memory after Effective Lifetime

References#

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01300.html

Exploit#

No public exploit known

History#

Version 12025-08-12Record published in the CVE List.

Published

Published: 2025-08-12
Last modified: 2025-08-12

Vendor information

Vendor: Not stated
Product: Intel(R) reference server platforms

Score

5.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 3.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

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

5.6 Medium

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

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

CVSS v3.1

5.3 Medium

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	High
User Interaction	None
Scope	Changed
Confidentiality	None
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).