CVE-2022-2576

Exp

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.

Published: 2022-07-29 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2022-2576

EPSS CVSS CWE GHSA Exploit-DB Affected

Conclusion & alert: CVE-2022-2576 is rated Exploit Available (59/100): CVSS High severity, with low exploitation likelihood (EPSS 0.51%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-2576

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-2576

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.20%	0.51%	+0.30%
2	2025-08-11	0.27%	0.20%	-0.07%
3	2025-07-30	—	0.27%	—

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-2576

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	3.6	[email protected]

Weakness enumeration for CVE-2022-2576

CWE-408 MITRE ↗

GitHub Security Advisory for CVE-2022-2576

GHSA-qq3j-44gw-cf6r · Severity: high · Ecosystem: maven — Eclipse Californium denial of service (DoS) via Datagram Transport Layer Security (DTLS) handshake on parameter mismatch

Affected software / configurations for CVE-2022-2576

Vendor	Product	Version	Raw CPE
eclipse	californium	>= 2.0.0, <= 2.7.2	cpe:2.3:a:eclipse:californium::::::::
eclipse	californium	>= 3.0.0, <= 3.5.0	cpe:2.3:a:eclipse:californium::::::::

References for CVE-2022-2576

URL	Tags
https://bugs.eclipse.org/580018	Exploit Issue Tracking Vendor Advisory

cvelogic Threat Intelligence