What is CVE-2026-31773?

CVE-2026-31773 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-05-01.

How severe is CVE-2026-31773?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Linux

CVE-2026-31773

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SMP: derive legacy responder STK authentication from MITM state The legacy responder path in smp_random() currently labels the stored STK as authenticated whe…

EPSS: 0.001 (23.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 6.1.168, 14ec593d6bb050cf40a4ade2f9ac9ca050e0412c, 0
Linux Linux_kernel — versions 3.16, 7.0

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-31773?: CVE-2026-31773 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-05-01.
How severe is CVE-2026-31773?: High severity. CVSS v3 base score is 8.8 out of 10.