CVE-2022-39368
Californium Failing DTLS handshakes causes Data Loss due to throttling blocking processing of records
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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
Timeline
ID reserved
By GitHub_M
- 2 months later
· 2 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| NVDNVD · Modified | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
- EPSS (exploitation in 30 days)
- 0.73% · top 45% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.2.
Weakness
Affected products
eclipse-californium · californium
- affected >= 2.7.0, < 2.7.4
- affected >= 3.0.0, < 3.7.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.eclipse.californium:scandiumGHSA-p72g-cgh9-ghjg (opens in a new tab)
References (3)
- https://github.com/eclipse-californium/californium/security/advisories/GHSA-p72g-cgh9-ghjg (opens in a new tab)x_transferred
- https://github.com/eclipse-californium/californium/commit/5648a0c27c2c2667c98419254557a14bac2b1f3f (opens in a new tab)x_transferred
- https://github.com/eclipse-californium/californium/commit/726bac57659410da463dcf404b3e79a7312ac0b9 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-p72g-cgh9-ghjg (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-39368)Record last updated .