CVE-2026-15417: CWE-369: Divide By Zero in Silicon Labs silabser.sys driver
CVE-2026-15417 is a medium severity vulnerability in the silabser.sys driver for Silicon Labs CP210x devices on Windows 8. It allows a local unprivileged user to cause a kernel crash by providing incorrect driver settings that trigger a divide-by-zero error.
AI Analysis
Technical Summary
The silabser.sys Windows 8 driver for CP210x devices contains a divide-by-zero vulnerability (CWE-369) that can be triggered by a local unprivileged user. By supplying incorrect driver settings, the attacker can cause the kernel to crash, resulting in a denial of service condition. The vulnerability affects versions from 0 up to and including 6.7.6 of the driver. The CVSS 4.0 base score is 6.9, reflecting a medium severity with local attack vector and no privileges required.
Potential Impact
Successful exploitation causes a kernel crash leading to denial of service. There is no indication of privilege escalation, code execution, or data compromise. The impact is limited to system stability disruption.
Mitigation Recommendations
No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, avoid using vulnerable driver versions or restrict local user access to systems with the affected driver.
CVE-2026-15417: CWE-369: Divide By Zero in Silicon Labs silabser.sys driver
Description
CVE-2026-15417 is a medium severity vulnerability in the silabser.sys driver for Silicon Labs CP210x devices on Windows 8. It allows a local unprivileged user to cause a kernel crash by providing incorrect driver settings that trigger a divide-by-zero error.
CVSS v4.0
Score 6.9medium
Affected software
Silicon Labs
silabser.sys driver
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The silabser.sys Windows 8 driver for CP210x devices contains a divide-by-zero vulnerability (CWE-369) that can be triggered by a local unprivileged user. By supplying incorrect driver settings, the attacker can cause the kernel to crash, resulting in a denial of service condition. The vulnerability affects versions from 0 up to and including 6.7.6 of the driver. The CVSS 4.0 base score is 6.9, reflecting a medium severity with local attack vector and no privileges required.
Potential Impact
Successful exploitation causes a kernel crash leading to denial of service. There is no indication of privilege escalation, code execution, or data compromise. The impact is limited to system stability disruption.
Mitigation Recommendations
No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, avoid using vulnerable driver versions or restrict local user access to systems with the affected driver.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Silabs
- Date Reserved
- 2026-07-10T14:57:33.010Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa2eaf6555a9c516202b5d7
Added to database: 09/10/2026, 17:37:58 UTC
Last enriched: 09/10/2026, 17:58:04 UTC
Last updated: 09/10/2026, 17:58:04 UTC
Views: 3
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