Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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).
Primary rating from Vendor (qualcomm).
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
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
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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Same weakness CWE-749 – Exposed Dangerous Method or Function
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-84345
GHSA-x3hp-78g6-7fhx