CVSS v3
7.8
HIGH
EPSS Score
91.7%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.
Active exploitation of CVE-2023-2640 has not been confirmed. The EPSS score is 91.7%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2023-2640 has a CVSS v3 base score of 7.8 (HIGH severity).
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Ranked by exploit probability (EPSS).