CVE-2025-21479: 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:2025-06374, CNNVD-202506-177, EUVD-2025-16710, GHSA-vmqr-hrfr-7527

VEDAS cluster: VEDAS:BEBOOPBOLT

Exploit Observer links 12 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (12)

Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.

Research and write-ups (1)

Vulnerability databases and vendor advisories (5)

Catalogue entries, not exploit evidence.

89 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
0.008
low predicted chance of attack
VEDAS
0.978
strong exploit evidence
On CISA KEV
Yes, since 2025-06-03
Detection rule
Out of scope (local)
EPSS (chance of attack)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.1CVE-2025-21479 EPSS over time2025-062026-11-01
VEDAS (exploit evidence)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.9CVE-2025-21479 VEDAS over time2025-062026-11-01

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

ProductAffectedNot affected
Qualcomm, Inc. Snapdragonversion AQT1000
version FastConnect 6200
version FastConnect 6700
version FastConnect 6800
version FastConnect 6900
version FastConnect 7800
version QCA6391
version QCM4490
and 67 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:

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

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.