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CVE-2026-105622 Zenitel Connect missing lockout and rate limiting on the WAMP-CRA authentication channel

6.3 medium

Medium (6.3) in zenitel zenitel connect.

On this page
Improper restriction of excessive authentication attempts in the WAMP-CRA (challenge-response) authentication path in Zenitel Connect before 1.11.0 allows remote attackers to guess user passwords via unlimited authentication attempts, because the path, in which the broker issues a challenge and the client returns an HMAC of it keyed with the user's secret, applies no account lockout or rate limiting. Affected releases enforce a password policy of at least 12 characters including upper-case, lower-case, numeric and special characters, so practical exploitation requires a reused or predictable password rather than exhaustive guessing. The WAMP-CRA authentication path is removed in 1.11.0.

Severity

CVSS 4.0

6.3 medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-307 Improper Restriction of Excessive Authentication Attempts
OWASP Top 10
A07:2025 Authentication Failures
Published
Modified
Assigned by
Zenitel (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • zenitel:zenitel connect

Versions

From the CNA's record in the CVE List.

ProductAffected
Zenitel Connectbefore 1.11.0

Attack patterns (CAPEC)

  • CAPEC-16 Dictionary-based Password Attack Likelihood: Medium · Severity: High
  • CAPEC-49 Password Brute Forcing Likelihood: Medium · Severity: High
  • CAPEC-560 Use of Known Domain Credentials Likelihood: High · Severity: High
  • CAPEC-565 Password Spraying Likelihood: High · Severity: High
  • CAPEC-600 Credential Stuffing Likelihood: High · Severity: High
  • CAPEC-652 Use of Known Kerberos Credentials Likelihood: Medium · Severity: High
  • CAPEC-653 Use of Known Operating System Credentials Likelihood: High · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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