Vulnerability-Lookup

GHSA-XJ2V-MGXG-MCM4

Vulnerability from github – Published: 2026-04-21 03:31 – Updated: 2026-07-08 03:30

Details

** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS) condition in the web management interface by convincing an authenticated administrator to visit the “AP Select” page while a malformed SSID is present.

Severity

4.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-6058"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-116"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-21T02:16:08Z",
    "severity": "MODERATE"
  },
  "details": "** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS) condition in the web management interface by convincing an authenticated administrator to visit the \u201cAP Select\u201d page while a malformed SSID is present.",
  "id": "GHSA-xj2v-mgxg-mcm4",
  "modified": "2026-07-08T03:30:25Z",
  "published": "2026-04-21T03:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6058"
    },
    {
      "type": "WEB",
      "url": "https://www.zyxel.com/global/en/support/end-of-life"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-6058 (GCVE-0-2026-6058)

Vulnerability from cvelistv5 – Published: 2026-04-21 01:42 – Updated: 2026-04-21 13:26 Unsupported When Assigned

Summary

Severity

4.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-21 13:26 UTC

CWE

CWE-116 - Improper Encoding or Escaping of Output

Assigner

Zyxel mitre root

References

1 reference

URL	Tags
https://www.zyxel.com/global/en/support/end-of-life

Impacted products

1 product

Vendor	Product	Version
Zyxel	WRE6505 v2 firmware	Affected: V1.00(ABDV.3)C0

Date Public

2026-04-21 02:00

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JSON

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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-21T13:26:22.166869Z",
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        }
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  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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.