Is CVE-2023-2640 in the CISA KEV catalog?

No. CVE-2023-2640 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-2640?

CVE-2023-2640 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-2640?

CVE-2023-2640 has an EPSS score of 15.78% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2023-2640

HIGHEPSS 96th pctl

7.8

CVSS v3

NVD

Description

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.

CWE-863

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

15.78%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.