Is CVE-2021-28163 in the CISA KEV catalog?

No. CVE-2021-28163 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28163?

CVE-2021-28163 has a CVSS v3 base score of 2.7 (LOW).

What is the EPSS score for CVE-2021-28163?

CVE-2021-28163 has an EPSS score of 4.18% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28163?

Upgrade jetty9 on debian 11 to 9.4.39-1 or later.

CVE & CISA-KEV Catalog

CVE-2021-28163

LOWEPSS 90th pctl

2.7

CVSS v3

NVD

Description

In Eclipse Jetty 9.4.32 to 9.4.38, 10.0.0.beta2 to 10.0.1, and 11.0.0.beta2 to 11.0.1, if a user uses a webapps directory that is a symlink, the contents of the webapps directory is deployed as a static webapp, inadvertently serving the webapps themselves and anything else that might be in that directory.

CWE-200Information Exposure CWE-59Link Following

How to fix

Remediation Available

jetty9Debian

Fixed in:9.4.39-1CVE-2021-28163

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

4.18%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% 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.