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Fencer Vulns
high 8.2

CVE-2022-39368 json

Californium Failing DTLS handshakes causes Data Loss due to throttling blocking processing of records

published 2022-11-09 4 y ago modified 2026-06-17 4 mo ago also GHSA-p72g-cgh9-ghjg , EUVD-2022-7396

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

Eclipse Californium is a Java implementation of RFC7252 - Constrained Application Protocol for IoT Cloud services. In versions prior to 3.7.0, and 2.7.4, Californium is vulnerable to a Denial of Service. Failing handshakes don't cleanup counters for throttling, causing the threshold to be reached without being released again. This results in permanently dropping records. The issue was reported for certificate based handshakes, but may also affect PSK based handshakes. It generally affects client and server as well. This issue is patched in version 3.7.0 and 2.7.4. There are no known workarounds. main: commit 726bac57659410da463dcf404b3e79a7312ac0b9 2.7.x: commit 5648a0c27c2c2667c98419254557a14bac2b1f3f

Patch / fix

  • maven org.eclipse.californium:scandium 2.7.4, 3.7.0
  • eclipse californium 2.7.4, 3.7.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-39368 updated cvss 8.2

scandium: Failing DTLS handshakes may cause throttling to block processing of records

  • Red Hat Integration Camel Quarkus 1 scandium scandium
    affected: no fix planned “Will not fix”
  • Red Hat RHINT Camel-K-1.10.1
    fixed: vendor fix RHSA-2023:3906
  • Red Hat RHINT Camel-Springboot 3.20.1
    fixed: vendor fix RHSA-2023:2100
  • Red Hat Fuse 7 element-connector element-connector
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
NVD 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
GitHub 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Affected packages

ecosystem package affected fixed in
maven org.eclipse.californium:scandium
>=3.0.0, <3.7.0
>=2.7.0, <2.7.4
3.7.0
2.7.4

Affected products

  • eclipse-californium californium

Classification

Weakness
  • CWE-404 Improper Resource Shutdown or Release
  • CWE-459 Incomplete Cleanup

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.