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
VLAI?
Summary
** 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
CWE
  • CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
Impacted products
Vendor Product Version
Zyxel WRE6505 v2 firmware Affected: V1.00(ABDV.3)C0
Create a notification for this product.
Date Public ?
2026-04-21 02:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6058",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-21T13:26:22.166869Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-21T13:26:29.283Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WRE6505 v2 firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "V1.00(ABDV.3)C0"
            }
          ]
        }
      ],
      "datePublic": "2026-04-21T02:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "** 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."
            }
          ],
          "value": "** 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-116",
              "description": "CWE-116 Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-21T01:48:13.740Z",
        "orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
        "shortName": "Zyxel"
      },
      "references": [
        {
          "url": "https://www.zyxel.com/global/en/support/end-of-life"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "unsupported-when-assigned"
      ],
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
    "assignerShortName": "Zyxel",
    "cveId": "CVE-2026-6058",
    "datePublished": "2026-04-21T01:42:07.433Z",
    "dateReserved": "2026-04-10T01:11:47.075Z",
    "dateUpdated": "2026-04-21T13:26:29.283Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-6058",
      "date": "2026-04-21",
      "epss": "0.00017",
      "percentile": "0.03989"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-6058\",\"sourceIdentifier\":\"security@zyxel.com.tw\",\"published\":\"2026-04-21T02:16:08.500\",\"lastModified\":\"2026-04-21T16:20:24.180\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[{\"sourceIdentifier\":\"security@zyxel.com.tw\",\"tags\":[\"unsupported-when-assigned\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"** 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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@zyxel.com.tw\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security@zyxel.com.tw\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-116\"}]}],\"references\":[{\"url\":\"https://www.zyxel.com/global/en/support/end-of-life\",\"source\":\"security@zyxel.com.tw\"}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"96e50032-ad0d-4058-a115-4d2c13821f9f\", \"shortName\": \"Zyxel\", \"dateUpdated\": \"2026-04-21T01:48:13.740Z\"}, \"datePublic\": \"2026-04-21T02:00:00.000Z\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-116\", \"description\": \"CWE-116 Improper Encoding or Escaping of Output\", \"type\": \"CWE\"}]}], \"affected\": [{\"vendor\": \"Zyxel\", \"product\": \"WRE6505 v2 firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"V1.00(ABDV.3)C0\"}], \"defaultStatus\": \"unaffected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"** 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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"** 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.\"}]}], \"tags\": [\"unsupported-when-assigned\"], \"references\": [{\"url\": \"https://www.zyxel.com/global/en/support/end-of-life\"}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV3_1\": {\"version\": \"3.1\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\", \"baseSeverity\": \"MEDIUM\", \"baseScore\": 4.5, \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H\"}}], \"source\": {\"discovery\": \"UNKNOWN\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.1\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-6058\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-21T13:26:22.166869Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-21T13:26:25.786Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-6058\", \"assignerOrgId\": \"96e50032-ad0d-4058-a115-4d2c13821f9f\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Zyxel\", \"dateReserved\": \"2026-04-10T01:11:47.075Z\", \"datePublished\": \"2026-04-21T01:42:07.433Z\", \"dateUpdated\": \"2026-04-21T13:26:29.283Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.