Answer in brief
CVE-2025-71108 records a Unknown severity vulnerability in usb: typec: ucsi: Handle incorrect num_connectors capability. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f <07c8d2a109d847775b3b4e2c3294c8e1eea75432 || >=c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f <58941bbb0050e365a98c64f1fc4a9a0ac127dba6 || >=c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f <f72f97d0aee4a993a35f2496bca5efd24827235d || >=c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f <914605b0de8128434eafc9582445306830748b93 || >=c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f <3042a57a8e8bce4a3100c3f6f03dc372aab24943 || >=c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f <132fe187e0d940f388f839fe2cde9b84106ad20d || >=c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f <30cd2cb1abf4c4acdb1ddb468c946f68939819fb | 07c8d2a109d847775b3b4e2c3294c8e1eea75432, 58941bbb0050e365a98c64f1fc4a9a0ac127dba6, f72f97d0aee4a993a35f2496bca5efd24827235d, 914605b0de8128434eafc9582445306830748b93, 3042a57a8e8bce4a3100c3f6f03dc372aab24943, 132fe187e0d940f388f839fe2cde9b84106ad20d, 30cd2cb1abf4c4acdb1ddb468c946f68939819fb |
| Linux/Linuxgeneric | 4.13 | Not reported |
Published upstream
Jan 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.