What is CVE-2020-27222?

CVE-2020-27222 is a high-severity vulnerability in Eclipse Californium, classified under CWE-372. CVSS score: 7.5/10. Published 2021-02-03.

How severe is CVE-2020-27222?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2020-27222 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Eclipse Californium

CVE-2020-27222

In Eclipse Californium version 2.3.0 to 2.6.0, the certificate based (x509 and RPK) DTLS handshakes accidentally fails, because the DTLS server side sticks to a wrong internal state. That wrong internal state is set by a previous certifica…

EPSS: 0.009 (54.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Eclipse Californium
The Eclipse Foundation Californium — versions [2.3.0, 2.6.0]

Weakness classification (CWE)

CWE-372

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

emo@eclipse.org (Vendor Advisory, Permissions Required, x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2020-27222?: CVE-2020-27222 is a high-severity vulnerability in Eclipse Californium, classified under CWE-372. CVSS score: 7.5/10. Published 2021-02-03.
How severe is CVE-2020-27222?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-27222 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.