What is CVE-2026-53402?

CVE-2026-53402 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2026-07-19.

How severe is CVE-2026-53402?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Linux

CVE-2026-53402

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: fix out-of-bounds read in err_out of fbcon_do_set_font() When fbcon_do_set_font() fails (e.g., due to a memory allocation failure inside vc_resize() under…

EPSS: 0.002 (6.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Affected products

Linux — versions a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24, 868749a7456dc48e93887a8474194e2ee6d6c21f, ebd6f886aa2447fcfcdce5450c9e1028e1d681bb

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2026-53402?: CVE-2026-53402 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2026-07-19.
How severe is CVE-2026-53402?: High severity. CVSS v3 base score is 7.1 out of 10.