Vulnerability in Yealink AVHub
CVSS score
7.4
EPSS probability
—
Risk score
0.7
Published
4 h ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
1
Source agreement
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Evidence confidence
%55
Short explanation
A vulnerability exists in Yealink AVHub and various products due to a default 8-digit numeric PSK with insufficient strength used when the Wi-Fi AP function is enabled. Attackers can exploit this via brute-force attacks to gain unauthorized network access and intercept Wi-Fi traffic.
This flaw stems from the Wi-Fi access point using a weak pre-shared key (PSK). Successful exploitation allows attackers to infiltrate the local network and monitor wireless traffic.
What should be done?
- Follow vendor security advisories
- Change the default Wi-Fi AP password to a strong and complex value
- Disable the Wi-Fi AP function when not required
Chain of evidence and sources
Yealink AVHub ve ilgili ürünlerde Wi-Fi AP işlevi etkinleştirildiğinde yetersiz güce sahip varsayılan 8 haneli bir sayısal PSK kullanılmaktadır.
Saldırganlar bu zafiyeti kaba kuvvet saldırıları yoluyla istismar ederek yetkisiz ağ erişimi sağlayabilir ve Wi-Fi trafiğini ele geçirebilir.
Show the technical text from the sources
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.
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE: CWE-334
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-122118 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.4 | CVSS V31 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | NVD |
| 7.4 | CVSS V3_1 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | CVE CNA |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-122118 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-122118 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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