CVE-2025-21480: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.
Description quoted from the CVE record (assigned by qualcomm, published 2025-06-03).
Weakness: CWE-863: Incorrect Authorization
How it can be exploited
Exploitable with local access with low attack complexity needing no privileges and a user must take an action. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: no. Technical impact: total.
- On CISA KEV since
- 2025-06-03
- US federal deadline
- 2025-06-24
- Ransomware use
- Not known
Public exploit evidence (Exploit Observer)
Also known as: BDU:2025-06405, CNNVD-202506-164, EUVD-2025-16705, GHSA-gj4f-pc42-qxg8
Exploit Observer has no public exploit code that names this CVE or one of its aliases.
Research and write-ups (1)
- Research or write-up: https://docs.qualcomm.com/product/publicresources/securitybulletin/june-2025-bulletin.html#_cve-2025-21480
Vulnerability databases and vendor advisories (6)
Catalogue entries, not exploit evidence.
- Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2025-16705
- Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-gj4f-pc42-qxg8
- Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-21480
- Vulnerability database or vendor advisory: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21480
- Vulnerability database or vendor advisory: https://www.cnnvd.org.cn/home/globalSearch?keyword=CNNVD-202506-164
- Vulnerability database or vendor advisory: https://www.tenable.com/cve/CVE-2025-21480
31 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.
VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.
Live scores
- EPSS
- 0.004
low predicted chance of attack - VEDAS
- 0.699
some exploit evidence - On CISA KEV
- Yes, since 2025-06-03
- Detection rule
- Out of scope (local)
Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish.
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| Qualcomm, Inc. Snapdragon | version AQT1000 version FastConnect 6200 version FastConnect 6700 version FastConnect 6800 version FastConnect 6900 version FastConnect 7800 version QCA6391 version QCM4490 and 68 more ranges | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
Exploit Observer also maps it to: qualcomm snapdragon_460_mobile_platform_firmware, qualcomm snapdragon_480\+_5g_mobile_platform_\(sm4350-ac\)_firmware, qualcomm snapdragon_480_5g_mobile_platform_firmware, qualcomm snapdragon_4_gen_1_mobile_platform_firmware, qualcomm snapdragon_662_mobile_platform_firmware, qualcomm snapdragon_680_4g_mobile_platform_firmware, qualcomm snapdragon_685_4g_mobile_platform_\(sm6225-ad\)_firmware, qualcomm snapdragon_690_5g_mobile_platform_firmware, qualcomm snapdragon_695_5g_mobile_platform_firmware, qualcomm snapdragon_720g_mobile_platform_firmware.
How to fix it
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor guidance:
- https://docs.qualcomm.com/product/publicresources/securitybulletin/june-2025-bulletin.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-21480
How to detect it
This bug needs local access to exploit. VEDAS signatures cover remotely exploitable bugs for now, so there is no network rule or remote check for it. Patch it and watch your endpoint telemetry for unusual local activity.
References
Government sources
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21480 (government-resource)
Other references
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.