CVSS 4.0
6.9 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-105671 Zenitel Connect login allows username enumeration via verbose error responses
Medium (6.9) in zenitel zenitel connect.
On this page
The login flow in Zenitel Connect before 1.11.0 returns different error responses depending on whether a submitted username exists, which allows remote attackers to enumerate valid user accounts via crafted login requests.
Severity
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: yes · 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-204 Observable Response Discrepancy
- 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.
| Product | Affected |
|---|---|
| Zenitel Connect | before 1.11.0 |
Attack patterns (CAPEC)
- CAPEC-331 ICMP IP Total Length Field Probe Likelihood: Medium · Severity: Low
- CAPEC-332 ICMP IP 'ID' Field Error Message Probe Likelihood: Medium · Severity: Low
- CAPEC-541 Application Fingerprinting Severity: Low
- CAPEC-580 System Footprinting Likelihood: Low · Severity: Low
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.