What is CVE-2025-68317?

CVE-2025-68317 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-12-16.

How severe is CVE-2025-68317?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Linux

CVE-2025-68317

In the Linux kernel, the following vulnerability has been resolved: io_uring/zctx: check chained notif contexts Send zc only links ubuf_info for requests coming from the same context. There are some ambiguous syz reports, so let's check the assumption on notification completion.

EPSS: 0.002 (5.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 6fe4220912d19152a26ce19713ab232f4263018d, 6.10, 0

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2025-68317?: CVE-2025-68317 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-12-16.
How severe is CVE-2025-68317?: High severity. CVSS v3 base score is 7.8 out of 10.