What is CVE-2026-43497?

CVE-2026-43497 is a high-severity vulnerability in Linux. CVSS score: 7.3/10. Published 2026-05-21.

How severe is CVE-2026-43497?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Linux

CVE-2026-43497

In the Linux kernel, the following vulnerability has been resolved: fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-after-free dlfb_ops_mmap() uses remap_pfn_range() to map vmalloc framebuffer pages to userspace but sets no vm_o…

EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 7.1-rc3, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 7.0.7

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
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-2026-43497?: CVE-2026-43497 is a high-severity vulnerability in Linux. CVSS score: 7.3/10. Published 2026-05-21.
How severe is CVE-2026-43497?: High severity. CVSS v3 base score is 7.3 out of 10.