CVE-2025-71108In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Handle incorrect num_connectors capability The UCSI spec states that the num_connectors field is 7 bits, and the…
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In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Handle incorrect num_connectors capability The UCSI spec states that the num_connectors field is 7 bits, and the 8th bit is reserved and should be set to zero. Some buggy FW has been known to set this bit, and it can lead to a system not booting. Flag that the FW is not behaving correctly, and auto-fix the value so that the system boots correctly. Found on Lenovo P1 G8 during Linux enablement program. The FW will be fixed, but seemed worth addressing in case it hit platforms that aren't officially Linux supported.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 4.13.1 before 5.10.248; from 5.11 before 5.15.198; from 5.16 before 6.1.160; from 6.2 before 6.6.120; from 6.7 before 6.12.64; from 6.13 before 6.18.3; 4.13; 6.19; and 7 more ranges | NVD |
References
- https://git.kernel.org/stable/c/07c8d2a109d847775b3b4e2c3294c8e1eea75432patch
- https://git.kernel.org/stable/c/132fe187e0d940f388f839fe2cde9b84106ad20dpatch
- https://git.kernel.org/stable/c/3042a57a8e8bce4a3100c3f6f03dc372aab24943patch
- https://git.kernel.org/stable/c/30cd2cb1abf4c4acdb1ddb468c946f68939819fbpatch
- https://git.kernel.org/stable/c/58941bbb0050e365a98c64f1fc4a9a0ac127dba6patch
- https://git.kernel.org/stable/c/914605b0de8128434eafc9582445306830748b93patch
- https://git.kernel.org/stable/c/f72f97d0aee4a993a35f2496bca5efd24827235dpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.