EUVD-2026-41933
GHSA-hmx9-2rg5-jc4p
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
TOCTOU race needs local low-privileged code (AV:L/PR:L) and reliable race-win (AC:H); successful memory corruption yields full compromise (C:H/I:H/A:H), scope unchanged.
Primary rating from Vendor (qualcomm).
CVSS VectorNVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
5DescriptionNVD
Memory Corruption when processing asynchronous input parameters due to improper handling of modified values between check and use.
AnalysisAI
Local privilege escalation via memory corruption in Qualcomm Snapdragon platforms occurs when asynchronous input parameters are validated and then re-read after modification, a time-of-check/time-of-use race that yields total compromise of confidentiality, integrity, and availability. Affecting a broad range of Snapdragon connectivity, WCD codec, WSA, and compute SoCs, a local low-privileged attacker who can win the race can corrupt memory and gain elevated code execution. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires local code execution on the affected Snapdragon device with at least low privileges (CVSS PR:L, AV:L) - a remote, unauthenticated path does not apply. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are internally consistent and point to a genuine but not urgent local-privilege risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A low-privileged app or local process on a Snapdragon-based device repeatedly submits an asynchronous request whose parameter is validated by the driver/firmware, then rapidly mutates that shared parameter (length or pointer) from a second thread so the modified value is used after the check, corrupting memory. Winning the race gives the attacker code execution at the elevated (kernel/TrustZone) privilege of the component, achieving total device compromise. … |
| Remediation | Patch available per vendor advisory: apply the firmware/driver updates published in the Qualcomm July 2026 Security Bulletin (https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.html) as delivered through your device OEM's software/OTA update for the affected Snapdragon component; the provided data does not enumerate exact fixed build numbers, so map your specific SoC/codec part to the bulletin's per-component fix. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
24 hours: Identify and inventory Qualcomm Snapdragon deployments (SoCs, connectivity modules, codecs) in production. …
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External POC / Exploit Code
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