What is CVE-2026-53130?

CVE-2026-53130 is a high-severity vulnerability in Linux, classified under Integer Underflow. CVSS score: 7.8/10. Published 2026-06-24.

How severe is CVE-2026-53130?

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

Integer overflow in Linux

CVE-2026-53130

In the Linux kernel, the following vulnerability has been resolved: fs/omfs: reject s_sys_blocksize smaller than OMFS_DIR_START omfs_fill_super() rejects oversized s_sys_blocksize values (> PAGE_SIZE), but it does not reject values small…

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:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Linux — versions a3ab7155ea21aadc8a4d5687e91b3d876973185e, 2.6.27, 0
Linux Linux_kernel

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-2026-53130?: CVE-2026-53130 is a high-severity vulnerability in Linux, classified under Integer Underflow. CVSS score: 7.8/10. Published 2026-06-24.
How severe is CVE-2026-53130?: High severity. CVSS v3 base score is 7.8 out of 10.