CWE-1257

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. A possible result is that an untrusted agent is blocked from accessing a memory region but is not blocked from accessing the corresponding aliased memory region.

CVE-2025-36600 (GCVE-0-2025-36600)
Vulnerability from cvelistv5
Published
2025-07-08 14:17
Modified
2025-07-08 20:40
Severity ?
8.2 (High) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-1257 - Improper Access Control Applied to Mirrored or Aliased Memory Regions
Summary
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.
References
Impacted products
Vendor Product Version
Dell Client Platform BIOS Version: N/A   ≤
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Mitigation

Phases: Architecture and Design, Implementation

Description:

  • 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.
Mitigation

Phases: Architecture and Design, Implementation

Description:

  • The controls that allow enabling memory aliases or changing the size of mapped memory regions should only be programmable by trusted software components.
CAPEC-456: Infected Memory

An adversary inserts malicious logic into memory enabling them to achieve a negative impact. This logic is often hidden from the user of the system and works behind the scenes to achieve negative impacts. This pattern of attack focuses on systems already fielded and used in operation as opposed to systems that are still under development and part of the supply chain.

CAPEC-679: Exploitation of Improperly Configured or Implemented Memory Protections

An adversary takes advantage of missing or incorrectly configured access control within memory to read/write data or inject malicious code into said memory.

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