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CVE-2021-42145

Published: Jan 24, 2024Updated: Jun 20, 2025 Sources: CVE List NVDCWE-755
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.4%
Top 65.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

An assertion failure discovered in in check_certificate_request() in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers to cause a denial of service.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-755

Affected Products

n/an/a
tinydtlscontiki-ng
Embedded
Operating Systems / rtos-embedded-os
contiki-ngoss-projectOperating Systemsaka contiki-ng., tinydtls

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://seclists.org/fulldisclosure/2024/Jan/18
seclists.org
http://seclists.org/fulldisclosure/2024/Jan/18
seclists.org

Timeline

Published
Jan 24, 2024
Last Updated
Jun 20, 2025

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