Description
An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.
Published: 2024-01-23
Score: 8.2 High
EPSS: 2.0% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-29125 An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.
History

Wed, 11 Jun 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H'}


Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
References

Mon, 21 Oct 2024 11:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Contiki-ng Tinydtls
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-06-11T17:09:33.477Z

Reserved: 2021-10-11T00:00:00.000Z

Link: CVE-2021-42142

cve-icon Vulnrichment

Updated: 2024-08-04T03:30:37.678Z

cve-icon NVD

Status : Modified

Published: 2024-01-23T22:15:16.270

Modified: 2025-06-11T17:15:30.070

Link: CVE-2021-42142

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses