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Qualcomm Snapdragon CVE-2026-25254

| EUVDEUVD-2026-84344 CRITICAL
Improper Authorization (CWE-285)
2026-09-22 qualcomm GHSA-wm2r-ggxj-84m5
9.8
CVSS 3.1 · Vendor: qualcomm
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Severity by source

Vendor (qualcomm) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Description and vector describe an authorization bypass on a network-facing SocketIO interface yielding unauthenticated RCE with full impact, so AV:N/PR:N/UI:N and C/I/A:H.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (qualcomm).

CVSS VectorVendor: qualcomm

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Sep 22, 2026 - 10:15 vuln.today
CVE Published
Sep 22, 2026 - 09:45 cve.org
CRITICAL 9.8

DescriptionCVE.org

Improper authorization leads to Remote Code Execution via SocketIO interface.

AnalysisAI

Remote code execution in Qualcomm Snapdragon-based products allows unauthenticated network attackers to bypass authorization through the SocketIO interface and execute arbitrary code. The vulnerability carries a CVSS 3.1 score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting full confidentiality, integrity, and availability impact, and no public exploit was identified at time of analysis. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires network reachability to the affected component's SocketIO (WebSocket) interface on a Qualcomm Snapdragon-based product; per the CVSS vector (PR:N/UI:N) no authentication or user interaction is needed once that interface is exposed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment All quantitative signals point the same direction on paper: the vendor CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H = 9.8) describes a fully remote, network-reachable, no-privilege, no-interaction path to full C/I/A compromise - the classic profile of a critical priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Exact vendor-released patch versions are not provided in the input data; consult the Qualcomm May-2026 security bulletin at https://docs.qualcomm.com/product/publicresources/securitybulletin/may-2026-bulletin.html for the fixed firmware or software release and apply it to affected Snapdragon-based products. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all Qualcomm Snapdragon-based products and determine whether their SocketIO interfaces are network-reachable; block or restrict network access to those interfaces where possible. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-25254 vulnerability details – vuln.today

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