Vulnerability in Linux

CVE-2026-68473

In the Linux kernel, the following vulnerability has been resolved: powerpc/uaccess: correct check for CONFIG_PPC_E500 in mask_user_address() mask_user_address() incorrectly checks for CONFIG_E500 instead of CONFIG_PPC_E500, causing mask_user_address_isel() to not be used on E500 hardware. Fix the check to use the correct name.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (5.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-68473: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

  • Linux — versions 7.0, 7.2, 861574d51bbd7a06dbf07f658a9a8def012c2f74

References

Frequently asked questions

What is CVE-2026-68473?
CVE-2026-68473 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2026-08-15.
How severe is CVE-2026-68473?
High severity. CVSS v3 base score is 7.8 out of 10.