CVSS 3.1
7.4 highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:NCVE-2026-122118
High (7.4).
In certain Yealink products before 2026-04-15, when the Wi-Fi AP function is enabled, a default 8-digit numeric PSK with insufficient strength is used. Attackers can exploit this weakness via brute-force attacks to gain unauthorized network access and intercept Wi-Fi traffic.
Severity
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-04. 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-334 Small Space of Random Values
- OWASP Top 10
- A04:2025 Cryptographic Failures
- Published
- Modified
- Record from
- the NVD, synced
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Explain CVE-2026-122118 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-122118?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-122118?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-122118 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Yealink AVHub | before 153.135.0.76 |
| Yealink UVC86 | before 151.435.0.66 |
| Yealink SmartVision 80 | before 321.435.0.86 |
| Yealink UVC40 E2 | before 319.410.0.66 |
| Yealink MeetingBorard C | before 328.321.0.40 |
| Yealink MeetingBar A10 | before 278.320.0.86 |
| Yealink MeetingBar A40 | before 289.320.0.81 |
| Yealink MeetingBar A50 | before 323.320.0.54 |