Security readout for executives and security teams
This CVE affects Contiki-NG tinyDTLS server behavior. A remote attacker may be able to make the server accept reused DTLS epoch values and expose sensitive application data from connected clients. The sources do not identify active exploitation or a named fixed release. Exposure is likely limited to systems embedding or deploying Contiki-NG tinyDTLS DTLS server code through master branch 53a0d97. The CVE record lists vendor, product, versions, and CPEs as n/a, so confirmation requires dependency and firmware review. Treat this as high priority where Contiki-NG tinyDTLS protects sensitive client data, especially in embedded or IoT deployments. Prioritize inventory first because public affected-product data is incomplete. Mitigation focus: Identify products, firmware, or services using Contiki-NG tinyDTLS server code.; Check Contiki-NG and product vendor guidance for fixed versions or patches.; Restrict affected DTLS services to trusted networks where operationally possible..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupCVE-2021-42146 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://seclists.org/fulldisclosure/2024/Jan/19CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incorrect Implementation of Authentication Algorithm
Incorrect Implementation of Authentication Algorithm represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.