What is CVE-2026-46107?

CVE-2026-46107 is a high-severity vulnerability in Linux, classified under Integer Underflow. CVSS score: 7.8/10. Published 2026-05-28.

How severe is CVE-2026-46107?

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

Integer overflow in Linux

CVE-2026-46107

In the Linux kernel, the following vulnerability has been resolved: dm-thin: fix metadata refcount underflow There's a bug in dm-thin in the function rebalance_children. If the internal btree node has one entry, the code tries to copy al…

EPSS: 0.001 (2.9th 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 7.0.7, 5.15.209, 5.10.259
Linux Linux_kernel — versions 7.1

Weakness classification (CWE)

CWE-191 — Integer Underflow

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-2026-46107?: CVE-2026-46107 is a high-severity vulnerability in Linux, classified under Integer Underflow. CVSS score: 7.8/10. Published 2026-05-28.
How severe is CVE-2026-46107?: High severity. CVSS v3 base score is 7.8 out of 10.