Qualcomm Chipset GPU Micronode Authorization Flaw (CVE-2025-21480)

Historical catalog analysis: CISA added this entry on June 03, 2025. The entry reflects catalog information retrieved on August 31, 2026, not a snapshot archived on the inclusion date. Check current vendor guidance before acting.

What the vulnerability is

CVE-2025-21480 is an incorrect authorization vulnerability (CWE-863) affecting multiple Qualcomm chipsets. The flaw exists within the GPU micronode; specifically, it allows for memory corruption when a specific sequence of commands is executed without proper authorization.

Exposure and applicability

This vulnerability applies to organizations utilizing hardware integrated with affected Qualcomm chipsets. Because the flaw resides at the chipset level, exposure is not limited to a single device model but extends across various products incorporating these components. The primary risk involves unauthorized command execution that can lead to memory corruption within the GPU subsystem.

Remediation priorities

Our analysis suggests prioritizing remediation based on the criticality of the hardware assets and their exposure to untrusted inputs.

1. Inventory Identification: Identify all hardware assets utilizing Qualcomm chipsets. Because this is a chipset-level vulnerability, standard software inventories may be insufficient; hardware bills of materials (HBOM) or vendor asset lists are required.
2. OEM Coordination: Since Qualcomm provides the silicon but Original Equipment Manufacturers (OEMs) provide the firmware and OS updates, defenders must contact their specific hardware vendors to determine if a patch has been released for their particular device model.
3. Mitigation Application: Apply vendor-supplied mitigations as soon as they are available. In scenarios where no mitigation is provided by the OEM, organizations should evaluate the risk of continued use against the potential for memory corruption.

How to validate remediation

Verification in this context requires more than a simple version check, as chipset firmware updates are often bundled into larger system updates.

• OEM Confirmation: The primary method of validation is obtaining explicit confirmation from the OEM that the specific firmware update addresses CVE-2025-21480.
• Update Verification: Confirm that the latest vendor-approved security patch has been successfully deployed across the fleet.

It is important to note that a successful update installation does not inherently prove the vulnerability is mitigated unless the OEM has explicitly linked that version to the fix for this CVE.

Limits and open questions

There are significant gaps in available data that impact total risk reduction:
* Affected Models: The source specifies “Multiple Chipsets” but does not provide an exhaustive list of every affected model, leaving a dependency on OEM disclosures.
* Exploitation Status: While added to the CISA Known Exploited Vulnerabilities catalog, the specific nature of known exploits and whether they have been used in ransomware campaigns remains unknown.
* Residual Risk: Even after patching, residual risk may exist if the update does not fully address the underlying authorization logic in all possible command sequences. Hardware-level flaws often require deep firmware integration to resolve completely.

Source and editorial note

CVE-2025-21480: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability · Source date: June 03, 2025 · Retrieved August 31, 2026.

Material facts are tied to the cited primary source. Recommendations are independent defensive analysis unless attributed to the source. Confirm consequential decisions against current authoritative guidance.

Archive date: June 06, 2025. The displayed post date is assigned three days after the source date to organize this retrospective archive; it does not mean this site published the analysis then. First published by this site: October 12, 2026 at 00:45 UTC.

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