What is CVE-2026-46123?

CVE-2026-46123 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.7/10. Published 2026-05-28.

How severe is CVE-2026-46123?

High severity. CVSS v3 base score is 7.7 out of 10.

Buffer overflow in Linux

CVE-2026-46123

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtio_bt: clamp rx length before skb_put virtbt_rx_work() calls skb_put(skb, len) where len comes directly from virtqueue_get_buf() with no validation agains…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (3.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Linux — versions 7.0.7, 6.1.175, 6.18.30
Linux Linux_kernel — versions 6.1, 7.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

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)

Frequently asked questions

What is CVE-2026-46123?: CVE-2026-46123 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.7/10. Published 2026-05-28.
How severe is CVE-2026-46123?: High severity. CVSS v3 base score is 7.7 out of 10.