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Qualcomm Snapdragon EUVDEUVD-2026-84345

| CVE-2026-25255 HIGH
Exposed Dangerous Method or Function (CWE-749)
2026-09-22 qualcomm GHSA-x3hp-78g6-7fhx
7.8
CVSS 3.1 · NVD
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Severity by source

Vendor (qualcomm) PRIMARY
HIGH
qualitative
NVD
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
7.8 HIGH

Exposed dangerous gRPC function is reachable only locally (AV:L) by an existing low-privileged process (PR:L) with no user interaction, yielding full privilege escalation (C/I/A:H).

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

Primary rating from Vendor (qualcomm).

CVSS VectorNVD

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

Lifecycle Timeline

5
Analysis Updated
Oct 06, 2026 - 15:44 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Oct 06, 2026 - 15:37 vuln.today
cvss_changed
CVSS changed
Oct 06, 2026 - 15:37 NVD
8.8 (HIGH) 7.8 (HIGH)
Analysis Generated
Sep 22, 2026 - 10:15 vuln.today
CVE Published
Sep 22, 2026 - 09:45 cve.org
HIGH 8.8

DescriptionNVD

Exposed dangerous function lead to privilege escalation via gRPC server.

AnalysisAI

Local privilege escalation in Qualcomm Snapdragon firmware allows an attacker with low privileges to gain high-impact code execution and control over the device. The flaw resides in an exposed dangerous function within a gRPC server (CWE-749) and affects specific QPM (v3.0.127.2, v3.0.126.7, v3.0.125.4) and QSC (v1.21.0, v1.19.1, v1.17.1) builds. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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

Vulnerability AssessmentAI

Exploitation Exploitation requires local access to a Snapdragon device running an affected QPM (QPMv3.0.127.2, 3.0.126.7, 3.0.125.4) or QSC (QSCv1.21.0, 1.19.1, 1.17.1) firmware build, plus the ability to reach the exposed gRPC server from a low-privileged context (PR:L) - typically a locally installed or already-compromised application/process. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Signals are internally consistent and point to a genuine but non-urgent local privilege-escalation issue. … 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 Apply the firmware updates referenced in the Qualcomm May 2026 security bulletin (https://docs.qualcomm.com/product/publicresources/securitybulletin/may-2026-bulletin.html) for the affected QPM (v3.0.127.2, v3.0.126.7, v3.0.125.4) and QSC (v1.21.0, v1.19.1, v1.17.1) builds. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all devices using affected Qualcomm Snapdragon firmware builds QPM v3.0.127.2, v3.0.126.7, v3.0.125.4 and QSC v1.21.0, v1.19.1, v1.17.1; confirm exposure and engage Qualcomm or the device vendor for patch status and interim guidance since no vendor-released patch was identified at time of analysis; enforce least privilege and restrict local access to affected devices. …

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

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EUVD-2026-84345 vulnerability details – vuln.today

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