Client Platform BIOS: Improper Access Control Applied to Mirrored or Aliased Memory Regions
CVE-2025-36600 is a high-severity improper access control applied to mirrored or aliased memory regions vulnerability in Client Platform BIOS from Dell, with a CVSS 3.1 base score of 8.2 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, without any action from a user. The record lists version 1.51.0 as the first without the flaw, so updating Client Platform BIOS to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.2% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Client Platform BIOS to 1.51.0 or a later version.
- Update Latitude 12 Rugged Extreme 7214 Firmware to 1.51.0 or a later version.
- Read the advisory on dell.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Dell | Client Platform BIOS | before 1.51.0 | 1.51.0 |
| Dell | Latitude 12 Rugged Extreme 7214 Firmware | before 1.51.0 | 1.51.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (emc.com).
Official description
Dell Client Platform BIOS contains an Improper Access Control Applied to Mirrored or Aliased Memory Regions vulnerability in an externally developed component. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Code execution.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Access Control Applied to Mirrored or Aliased Memory Regions
Aliased or mirrored memory regions in hardware designs may have inconsistent read/write permissions enforced by the hardware.
How developers prevent this class of flaw
- The checks should be applied for consistency access rights between primary memory regions and any mirrored or aliased memory regions. If different memory protection units (MPU) are protecting the aliased regions, their protected range definitions and policies should be synchronized.
- The controls that allow enabling memory aliases or changing the size of mapped memory regions should only be programmable by trusted software components.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
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