0xlane/CVE-2021-3493

PoC

view exploit source poc_in_githubauthor 0xlanepublished 2026-07-23catalog poc_in_github

exploited CVEs (1)

Known CVEs related to this entry.

ID	severity	EPSS	exploitable	published
CVE-2021-3493US	high7.8OT critical	49.2% (99th)	KEV	2021-04-17
The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. D…

scry

Working exploits like this target internet-facing systems. See what is exposed on your perimeter with a free passive scan.