EUVD-2026-81333
GHSA-59fm-5gr7-cvvq
Severity by source
AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Adjacent RF access (AV:A), no auth or interaction, over-read in a controller crashes beyond its boundary (S:C), availability-only (A:H); C/I:N as no data or code impact.
Primary rating from Vendor (qualcomm).
CVSS VectorVendor: qualcomm
Lifecycle Timeline
3DescriptionCVE.org
Transient DOS while parsing frame during channel usage.
AnalysisAI
Transient denial of service affecting Qualcomm Snapdragon chipsets, where an attacker positioned on the adjacent radio network (AV:A) can send a malformed frame that is parsed while a channel is in active use, triggering a fault that disrupts availability. The flaw is an out-of-bounds read (CWE-126) in the wireless frame-parsing path and is reachable unauthenticated and without user interaction (PR:N/UI:N), though exploitation is confined to radio range and produces only a recoverable outage with no confidentiality or integrity impact (C:N/I:N). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an attacker on the adjacent radio network (physical/RF proximity, AV:A) able to transmit a malformed frame that the device parses during active channel usage - consistent with a WLAN/Bluetooth or similar wireless controller path. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS 3.1 vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H yields 7.4 (High) and is availability-only - the CWE-126 buffer over-read produces a transient denial of service, not code execution or data disclosure (C:N/I:N). … 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 | Qualcomm has published this issue in its September 2026 Security Bulletin (https://docs.qualcomm.com/product/publicresources/securitybulletin/september-2026-bulletin.html), which is the authoritative source for the patched chipset/firmware version and the list of affected part numbers - the provided data does not include an exact fix version, so no vendor-released patch version is confirmed at time of analysis and the bulletin must be consulted, with the fix applied through the OEM's firmware/BSP update for the specific device model. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Qualcomm Snapdragon-based devices and radio modules in use, confirm which have active wireless/radio channels, and verify exposure to adjacent radio networks; because no vendor-released patch identified at time of analysis, immediately disable unused wireless interfaces and restrict radio use where operationally feasible. …
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Same weakness CWE-126 – Buffer Over-read
View allSame technique Buffer Overflow
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External POC / Exploit Code
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