EUVD-2026-41928
GHSA-h4m3-5rw4-m7w5
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Local driver interface requires PR:L; AC:H reflects memory-layout dependency for reliable OOB write; S:C captures cross-domain corruption potential into an adjacent security boundary.
Primary rating from Vendor (qualcomm).
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
Memory Corruption when validating input batch size and buffer plane count exceeds maximum allowed values.
AnalysisAI
Memory corruption in Qualcomm Snapdragon silicon allows a local low-privileged attacker to trigger an out-of-bounds write (CWE-787) by submitting input with a buffer plane count or batch size exceeding the maximum allowed value. The scope change in the CVSS vector (S:C) indicates the corruption can escape the vulnerable component's security boundary, yielding partial confidentiality, integrity, and availability impact on an adjacent system component. No public exploit or active exploitation has been identified at time of analysis; SSVC confirms no known exploitation and non-automatable attack conditions.
Technical ContextAI
The root cause is CWE-787 (Out-of-bounds Write): the affected Snapdragon processing code path fails to enforce upper-bound validation on buffer plane count and batch size parameters before committing a memory write, allowing writes beyond the intended buffer boundary. The CPE string (cpe:2.3:a:qualcomm,_inc.:snapdragon:*:*:*:*:*:*:*:*) covers the full breadth of the Snapdragon ecosystem, including mobile SoCs (Snapdragon 4 Gen 2 through 8 Elite), automotive compute platforms (SA-series), XR and AR SoCs (XR2 5G, AR1 Gen 1, SXR-series), connectivity and RF chipsets (FastConnect 6700/6900/7800, WCN/WCD/WSA families), and compute modules (X1E80100, SC8380XP). The scope-change (S:C) in the CVSS vector suggests this vulnerable component operates within an isolated privilege or execution boundary - such as a camera ISP driver, DSP firmware, or modem subsystem - where a successful OOB write can corrupt memory belonging to a separate, higher-privileged domain.
RemediationAI
Qualcomm disclosed this vulnerability in their July 2026 Security Bulletin at https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.html; OEMs and platform integrators should obtain updated firmware or driver packages from Qualcomm through their chipset support channels immediately. For Android OEM devices, patches will typically flow through the Android Security Bulletin process, and device operators should prioritize applying the next available OEM OTA update. An exact patched firmware version is not independently confirmed from the available input data - the Qualcomm bulletin is the authoritative source for precise fix versions and affected component identifiers. Where patching cannot be applied immediately, compensating controls include restricting local code execution privileges on Snapdragon-powered devices to the minimum required (reducing the PR:L attack surface), and on automotive and XR platforms, applying strict process isolation and sandboxing for any untrusted workloads that interact with Qualcomm processing interfaces. Note that these controls reduce exposure but do not eliminate it, and AC:H means opportunistic exploitation is unlikely; however, automotive SA-series and XR deployments with weaker sandbox models should treat this as higher priority.
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today