A vulnerability in the update mechanism of Subaru StarLink Harman head units 2017, 2018, and 2019 may give an attacker (with physical access to the vehicle's USB ports) the ability to rewrite the firmware of the head unit
Published Nov 28, 2018
6.4
MEDIUMCVSS 3.0
EPSS 0.24%
Description
A vulnerability in the update mechanism of Subaru StarLink Harman head units 2017, 2018, and 2019 may give an attacker (with physical access to the vehicle's USB ports) the ability to rewrite the firmware of the head unit. This occurs because the device accepts modified QNX6 filesystem images (as long as the attacker obtains access to certain Harman decryption/encryption code) as a consequence of a bug where unsigned images pass a validity check. An attacker could potentially install persistent malicious head unit firmware and execute arbitrary code as the root user.
Affected products
No data.
Configuration 1
- n/a
Running on/with
- n/a
Configuration 2
- n/a
Running on/with
- n/a
Configuration 3
- n/a
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.24% (0.00241) | 13.81th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.24% (0.00241) | 15.52th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00094) | 40.32th | v3 (v2023.03.01) |
| Jul 17, 2024 | 0.09% (0.00094) | 40.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00094) | 38.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.04% (0.01036) | 43.31th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.04% (0.01036) | 20.62th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.73% (0.00731) | 20.40th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.73% (0.00731) | 0.00th | v1 |
References (1)
- https://github.com/sgayou/subaru_starlink_research x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/sgayou/subaru_starlink_research | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.