CVE-2022-2576

highpriority · track · 30EPSS 0.006 · 49 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.61% (49th) EPSS

CVSS 7.5 · high

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

In Eclipse Californium version 2.0.0 to 2.7.2 and 3.0.0-3.5.0 a DTLS resumption handshake falls back to a DTLS full handshake on a parameter mismatch without using a HelloVerifyRequest. Especially, if used with certificate based cipher suites, that results in message amplification (DDoS other peers) and high CPU load (DoS own peer). The misbehavior occurs only with DTLS_VERIFY_PEERS_ON_RESUMPTION_THRESHOLD values larger than 0.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-408USCWE-408US

affected products (8)

Products and version ranges known to be affected.

The Eclipse Foundation Eclipse Californium≤ unspecified ≤2.7.2enisa_euvdEU
The Eclipse Foundation Eclipse Californium≤ unspecified ≤3.5.0enisa_euvdEU
The Eclipse Foundation Eclipse Californium2.0.0 → unspecifiedenisa_euvdEU
The Eclipse Foundation Eclipse Californium3.0.0 → unspecifiedenisa_euvdEU
eclipse californium2.0.0 → 2.7.2nvdUScpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*
eclipse californium3.0.0 → 3.5.0nvdUScpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*
Maven org.eclipse.californium:californium-core2.0.0 → 2.7.3osvUSpkg:maven/org.eclipse.californium/californium-core
Maven org.eclipse.californium:californium-core3.0.0 → 3.6.0osvUSpkg:maven/org.eclipse.californium/californium-core

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-qq3j-44gw-cf6rEclipse Californium denial of service (DoS) via Datagram Transport Layer Security (DTLS) handshake on parameter mismatch2022-07-30ghsa · osvUS
In Eclipse Californium versions 2.0.0 to 2.7.2 and 3.0.0-3.5.0 a DTLS resumption handshake falls back to a DTLS full handshake on a parameter mismatch without using a HelloVerifyRequest. Especially, if used with certificate based cipher suites, that results in message amplification (DDoS other peers) and high CPU load (DoS own peer). The misbehavior occurs only with DTLS_VERIFY_PEERS_ON_RESUMPTION_THRESHOLD values larger than 0.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2022-07-29modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

https://bugs.eclipse.org/580018 cnnvd
https://cxsecurity.com/cveshow/CVE-2022-2576/cnnvd
https://github.com/eclipse/californium/pull/2039/commits/04808756630ff8e35035a48de243cc822b3d4af5Patchcnnvd
https://bugs.eclipse.org/580018 enisa_euvd
https://bugs.eclipse.org/580018ExploitIssue TrackingVendor Advisorynvd

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