CP210x Memory Leakage
Priority LOW 12CWE-130Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
In the silabser.sys driver for CP210x devices v11.5.0 and earlier, a local unprivileged user with a malicious device can use malformed packets to leak up to 145 bytes of uninitialized kernel pool memory. This vulnerability affects Windows 10 and earlier.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00206 10th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| silabs.com | silabser.sys driver | up to 11.5.0 | — | No fix listed | CNA |
- silabser.sys driver Vendorsilabs.com Affected up to 11.5.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Silicon Labs silabser.sys driver — siliconlabs.lightning.force.com/sfc/servlet.shepherd/docume…
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-12975 CP210x Driver Memory Corruption results in Arbitrary Code ExecutionPriority LOW 32
- TI-2026-12973 CP210x Denial of ServicePriority LOW 30
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15418
- 2026-10-03 Alias added: GHSA-fq6h-3222-8vm9
References
More silabs.com vulnerabilities
- TI-2023-24288 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 10.0
- TI-2023-14952 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12925 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12476 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2022-08744 Heap-based buffer overflow in MicriumOS HTTP Server allows potential remote code execution CVSS 3.1CRITICAL 9.8
- TI-2023-12937 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-15418 · CVE Program
- CVE-2026-15418 · NVD
- FIRST EPSS
- GHSA-fq6h-3222-8vm9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences