What is CVE-2026-45993?

CVE-2026-45993 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-27.

How severe is CVE-2026-45993?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-45993

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Add spectre boundry for syscall dispatch table The LoongArch syscall number is directly controlled by userspace, but does not have a array_index_nospec() boun…

EPSS: 0.001 (2.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 0, 6.12.86, 7.1
Linux Linux_kernel

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

Frequently asked questions

What is CVE-2026-45993?: CVE-2026-45993 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-27.
How severe is CVE-2026-45993?: Medium severity. CVSS v3 base score is 5.5 out of 10.