CVE-2025-71108
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Linux Kernel < 5.10.248
- Linux Kernel < 5.15.198
- Linux Kernel < 6.1.160
- Linux Kernel < 6.6.120
- Linux Kernel < 6.12.64
- Linux Kernel < 6.18.3
- Linux Kernel 4.13
- Linux Kernel 6.19
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-71108.md and follow it. Check whether this project is affected by CVE-2025-71108. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/07c8d2a109d847775b3b4e2c3294c8e1eea75432
- https://git.kernel.org/stable/c/132fe187e0d940f388f839fe2cde9b84106ad20d
- https://git.kernel.org/stable/c/3042a57a8e8bce4a3100c3f6f03dc372aab24943
- https://git.kernel.org/stable/c/30cd2cb1abf4c4acdb1ddb468c946f68939819fb
- https://git.kernel.org/stable/c/58941bbb0050e365a98c64f1fc4a9a0ac127dba6
- https://git.kernel.org/stable/c/914605b0de8128434eafc9582445306830748b93
- https://git.kernel.org/stable/c/f72f97d0aee4a993a35f2496bca5efd24827235d
References
- https://git.kernel.org/stable/c/07c8d2a109d847775b3b4e2c3294c8e1eea75432
- https://git.kernel.org/stable/c/132fe187e0d940f388f839fe2cde9b84106ad20d
- https://git.kernel.org/stable/c/3042a57a8e8bce4a3100c3f6f03dc372aab24943
- https://git.kernel.org/stable/c/30cd2cb1abf4c4acdb1ddb468c946f68939819fb
- https://git.kernel.org/stable/c/58941bbb0050e365a98c64f1fc4a9a0ac127dba6
- https://git.kernel.org/stable/c/914605b0de8128434eafc9582445306830748b93
- https://git.kernel.org/stable/c/f72f97d0aee4a993a35f2496bca5efd24827235d