DCK pinning attack in TETRA
Priority LOW 33CWE-807Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00274 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ETSI | TETRA Standard | all and later | — | No fix listed | CNA |
- TETRA Standard VendorETSI Affected all and later Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:midnightblue:tetra\:burst:-:*:*:*:*:*:*:* | burst | Vulnerable | Midnightblue |
- cpe:2.3:a:midnightblue:tetra\:burst:-:*:*:*:*:*:*:* Versions burst Vulnerable ·Midnightblue
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-24400
- 2026-10-03 Alias added: GHSA-6w2r-58cq-54q2
References
Advisory 1
More ETSI vulnerabilities
- TI-2022-08278 Intentionally weakened effective strength in TETRA TEA1 CVSS 3.1HIGH 8.8
- TI-2022-08277 Keystream recovery for arbitrary frames in TETRA CVSS 3.1HIGH 8.8
- TI-2022-08280 Ciphertext Malleability in TETRA CVSS 3.1HIGH 7.5
- TI-2019-06649 The ETSI Enterprise Transport Security (ETS, formerly known as eTLS) protocol does not… CVSS 3.0MEDIUM 5.9
- TI-2022-08279 De-anonymization attack in TETRA CVSS 3.1MEDIUM 4.3
Sources
- CVE-2022-24400 · CVE Program
- CVE-2022-24400 · NVD
- FIRST EPSS
- GHSA-6w2r-58cq-54q2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences