What is CVE-2026-43166?

CVE-2026-43166 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2026-05-06.

How severe is CVE-2026-43166?

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

Buffer overflow in Linux

CVE-2026-43166

In the Linux kernel, the following vulnerability has been resolved: erofs: fix interlaced plain identification for encoded extents Only plain data whose start position and on-disk physical length are both aligned to the block size should…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (2.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Linux — versions 1d191b4ca51d73699cb127386b95ac152af2b930, 6.15, 0
Linux Linux_kernel — versions 7.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-43166?: CVE-2026-43166 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2026-05-06.
How severe is CVE-2026-43166?: High severity. CVSS v3 base score is 7.1 out of 10.