CVE-2025-21480
Qualcomm — Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability
Qualcomm · CWE-863 — Incorrect authorization · in CISA KEV since 2025-06-03
EVRS 75 of 100 Urgent
Patch This Cycle
Rank 1,350 of 2,960 tracked
Raised to the floor for a confirmed exploited vulnerability.
Why it scores 75
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and an EPSS probability of 0.005.
- CISA KEVApplied
- RansomwareDid not apply
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
No fixed version identified yetCISA required action
- Please check with specific vendors (OEMs,) for information on patching status. For more information, please see
- nvd.nist.gov/…/CVE-2025-21480
Affected versions
- aqt1000 firmware
- fastconnect 6200 firmware
- fastconnect 6700 firmware
- fastconnect 6800 firmware
- fastconnect 6900 firmware
- fastconnect 7800 firmware
- qca6391 firmware
- qcm4490 firmware
+144 more affected products; see the full list at NVD.
Remediation
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 8.6 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.005 (38.9th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Unknown or none | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2025-06-24 · KEV since 2025 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | None known | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 8.6 (v3.1), assigned by qualcomm. | Listed | ENISA EUVD |
Description
NVDMemory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.
What CISA says to do