Vulnerability-Lookup

CVE-2026-122118 (GCVE-0-2026-122118)

Vulnerability from cvelistv5 – Published: 2026-11-04 17:55 – Updated: 2026-11-04 20:00

Summary

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

7.4 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-04 19:54 UTC

CWE

CWE-334 - Small Space of Random Values

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2263 records in the last 180 days details

References

1 reference

URL	Tags
https://www.yealink.com/en/trust-center/security-…

Impacted products

8 products

Vendor	Product	Version	CPE status
Yealink	AVHub	Affected: 0 , < 153.135.0.76 (custom)	guessed
Yealink	UVC86	Affected: 0 , < 151.435.0.66 (custom)	guessed
Yealink	SmartVision 80	Affected: 0 , < 321.435.0.86 (custom)	guessed
Yealink	UVC40 E2	Affected: 0 , < 319.410.0.66 (custom)	guessed
Yealink	MeetingBorard C	Affected: 0 , < 328.321.0.40 (custom)	guessed
Yealink	MeetingBar A10	Affected: 0 , < 278.320.0.86 (custom)	guessed
Yealink	MeetingBar A40	Affected: 0 , < 289.320.0.81 (custom)	guessed
Yealink	MeetingBar A50	Affected: 0 , < 323.320.0.54 (custom)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-122118

Vulnerability from fkie_nvd - Published: 2026-11-04 18:17 - Updated: 2026-11-04 20:19

Severity

7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Summary

References

	URL	Tags
	cve@mitre.org	https://www.yealink.com/en/trust-center/security-bulletins/wifi-ap-weak-password-vulnerability

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-122118",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-11-04T19:54:06.590482Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-11-04T18:17:43.667",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://www.yealink.com/en/trust-center/security-bulletins/wifi-ap-weak-password-vulnerability"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-334"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}

GHSA-763V-W5MM-JF4F

Vulnerability from github – Published: 2026-11-04 18:30 – Updated: 2026-11-04 18:30

Details

Severity

7.4 (High)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-122118"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-334"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-11-04T18:17:43Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-763v-w5mm-jf4f",
  "modified": "2026-11-04T18:30:55Z",
  "published": "2026-11-04T18:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-122118"
    },
    {
      "type": "WEB",
      "url": "https://www.yealink.com/en/trust-center/security-bulletins/wifi-ap-weak-password-vulnerability"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2026-122118 (GCVE-0-2026-122118)

FKIE_CVE-2026-122118

GHSA-763V-W5MM-JF4F

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