BT122 malformed packet with increased length field causes memory leak
Priority LOW 24CWE-126Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A malformed Bluetooth connection request message can cause the BT122 to leak potentially sensitive information. See vulnerability B-E4 in the related paper below.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00251 16th 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 | BT122 | up to 1.4.0 | — | No fix listed | CNA |
- BT122 Vendorsilabs.com Affected up to 1.4.0 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 ·
silabs.com BT122 — community.silabs.com/068Vm00000x0Yqy
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-46970 BT122 plaintext pause encryption request causes DOSPriority LOW 30
- TI-2026-46968 BT122 stops advertisingPriority LOW 24
Timeline
- 2026-10-02 Threatist record created from CVE-2026-65933
- 2026-10-03 Alias added: GHSA-pmcm-gw2w-hpxf
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-2026-65933 · CVE Program
- CVE-2026-65933 · NVD
- FIRST EPSS
- GHSA-pmcm-gw2w-hpxf · 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