Out-of-bounds write in Intel Thunderbolt controllers
Priority LOW 24CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Out-of-bounds write in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.
Why it matters now
EPSS 0.00219 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Intel(R) Thunderbolt(TM) controllers | See references | — | No fix listed | CNA |
- Intel(R) Thunderbolt(TM) controllers Vendor— Affected See references Fixed in — No fix listed CNA
CPE configurations NVD · 26
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:intel:jhl6240_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | before 21 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl6240_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:jhl6340_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | before 46 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl6340_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:jhl6540_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | before 46 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl6540_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:jhl7040_thunderbolt_3_retimer_firmware:*:*:*:*:*:*:*:* | before 22 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl7040_thunderbolt_3_retimer:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:jhl7340_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | before 60 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl7340_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
- cpe:2.3:o:intel:jhl6240_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions before 21 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl6240_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:jhl6340_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions before 46 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl6340_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:jhl6540_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions before 46 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl6540_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:jhl7040_thunderbolt_3_retimer_firmware:*:*:*:*:*:*:*:* Versions before 22 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl7040_thunderbolt_3_retimer:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:jhl7340_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions before 60 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl7340_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
Show 16 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:intel:jhl7440_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | before 60 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl7440_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:jhl7540_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | before 60 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl7540_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:jhl8010r_usb_retimer_firmware:*:*:*:*:*:*:*:* | before 41 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl8010r_usb_retimer:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:dsl5320_thunderbolt_2_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Intel |
| cpe:2.3:h:intel:dsl5320_thunderbolt_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:dsl5520_thunderbolt_2_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Intel |
| cpe:2.3:h:intel:dsl5520_thunderbolt_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:dsl6340_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Intel |
| cpe:2.3:h:intel:dsl6340_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:dsl6540_thunderbolt_3_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Intel |
| cpe:2.3:h:intel:dsl6540_thunderbolt_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:jhl8040r_thunderbolt_4_retimer_firmware:*:*:*:*:*:*:*:* | before 41 | Vulnerable | Intel |
| cpe:2.3:h:intel:jhl8040r_thunderbolt_4_retimer:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
- cpe:2.3:o:intel:jhl7440_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions before 60 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl7440_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:jhl7540_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions before 60 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl7540_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:jhl8010r_usb_retimer_firmware:*:*:*:*:*:*:*:* Versions before 41 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl8010r_usb_retimer:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:dsl5320_thunderbolt_2_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Intel
- cpe:2.3:h:intel:dsl5320_thunderbolt_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:dsl5520_thunderbolt_2_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Intel
- cpe:2.3:h:intel:dsl5520_thunderbolt_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:dsl6340_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Intel
- cpe:2.3:h:intel:dsl6340_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:dsl6540_thunderbolt_3_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Intel
- cpe:2.3:h:intel:dsl6540_thunderbolt_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:jhl8040r_thunderbolt_4_retimer_firmware:*:*:*:*:*:*:*:* Versions before 41 Vulnerable ·Intel
- cpe:2.3:h:intel:jhl8040r_thunderbolt_4_retimer:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12289
- 2026-10-03 Alias added: GHSA-6q8h-w49w-rg9j
References
More Intel Dsl5320 Thunderbolt 2 Firmware vulnerabilities
- TI-2020-09827 Uncontrolled resource consumption in Intel Thunderbolt controllers CVSS 3.1MEDIUM 5.5
- TI-2020-09826 Improper input validation in Intel Thunderbolt controllers CVSS 3.1MEDIUM 5.5
- TI-2020-09825 Insufficient control flow management in some Intel(R) Thunderbolt(TM) controllers may… CVSS 3.1MEDIUM 5.5
- TI-2020-09824 Improper control of a resource through its lifetime in some Intel(R) Thunderbolt(TM)… CVSS 3.1MEDIUM 5.5
- TI-2020-09823 Improper check for unusual conditions in Intel Thunderbolt controllers CVSS 3.1MEDIUM 5.5
- TI-2020-09822 Uncontrolled resource consumption in Intel Thunderbolt controllers CVSS 3.1MEDIUM 5.5
Sources
- CVE-2020-12289 · CVE Program
- CVE-2020-12289 · NVD
- FIRST EPSS
- GHSA-6q8h-w49w-rg9j · GitHub Advisory Database · CC BY 4.0
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