What is CVE-2026-46303?

CVE-2026-46303 is a high-severity vulnerability in Linux, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.2/10. Published 2026-06-08.

How severe is CVE-2026-46303?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in Linux

CVE-2026-46303

In the Linux kernel, the following vulnerability has been resolved: isofs: validate Rock Ridge CE continuation extent against volume size rock_continue() reads rs->cont_extent verbatim from the Rock Ridge CE record and passes it to sb_br…

EPSS: 0.003 (20.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Linux — versions f54e18f1b831c92f6512d2eedb224cd63d607d3d, 08313e26e06d4aa9ce1cbba1a8e359e9cab9ad56, 212c4d33ca83e2144064fe9c2911607fbed5386f
Linux Linux_kernel — versions 7.1

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

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-2026-46303?: CVE-2026-46303 is a high-severity vulnerability in Linux, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.2/10. Published 2026-06-08.
How severe is CVE-2026-46303?: High severity. CVSS v3 base score is 8.2 out of 10.