What’s Vulnerable › Vulnerabilities

CVE-2022-24400: DCK pinning attack in TETRA

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-19 · updated 2026-06-17
• Weakness: CWE-807

Description

A flaw in the TETRA authentication procecure allows a MITM adversary that can predict the MS challenge RAND2 to set session key DCK to zero.

Affected products

• Midnightblue Tetra:Burst: all versions

References

• https://tetraburst.com/
• https://tetraburst.com/

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