EUVD-2026-75624
GHSA-mh8r-v298-qg9c
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local access with no privileges (unprivileged user per description); kernel crash scopes beyond the driver to the whole OS (S:C); purely availability impact.
Primary rating from Vendor (Silabs).
CVSS VectorVendor: Silabs
Lifecycle Timeline
3DescriptionCVE.org
In the silabser.sys Windows 8 driver for CP210x devices, a local unprivileged user can use incorrect driver settings to cause a kernel crash.
AnalysisAI
Kernel denial-of-service in Silicon Labs' silabser.sys Windows 8 driver for CP210x USB-to-UART bridge devices allows any local unprivileged user to trigger a kernel crash by supplying incorrect driver settings. The root cause is CWE-369 (Divide by Zero) inside a kernel-mode driver, meaning exploitation produces a Blue Screen of Death (BSOD) and full system reboot. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The CP210x USB-to-UART device must be physically attached to the target Windows 8 system with the silabser.sys driver loaded. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 4.0 scores this 6.9 (Medium) with AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N, reflecting a local unprivileged denial-of-service with no confidentiality or integrity impact. … 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 | Consult the vendor advisory at the Silicon Labs Salesforce portal (https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1) to obtain an updated driver package. … Detailed patch versions, workarounds, and compensating controls in full report. |
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More in Silabser Sys Driver
View allKernel pool memory corruption in Silicon Labs silabser.sys (the Windows kernel driver for CP210x USB-to-serial bridge de
Kernel pool memory disclosure in Silicon Labs silabser.sys driver (v11.5.0 and earlier) allows a local attacker with phy
Same weakness CWE-369 – Divide By Zero
View allSame technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today