Vulnerability in Linux

CVE-2026-63796

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject oversized group bitmap descriptors ocfs2_validate_gd_parent() only bounds bg_bits against the parent allocator's chain geometry. A malicious descriptor ca…

EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

  • Linux — versions ccd979bdbce9fba8412beb3f1de68a9d0171b12c, 2.6.16, 0

References

Frequently asked questions

What is CVE-2026-63796?
CVE-2026-63796 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-07-19.
How severe is CVE-2026-63796?
High severity. CVSS v3 base score is 8.8 out of 10.