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VAR-202302-0821

Vulnerability from variot - Updated: 2025-11-19 23:02

A vulnerability was found in Tenda AC23 16.03.07.45 and classified as critical. Affected by this issue is the function formSetSysToolDDNS/formGetSysToolDDNS of the file /bin/httpd. The manipulation leads to out-of-bounds write. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-220640. Shenzhen Tenda Technology Co.,Ltd. of ac23 An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. The Tenda AC23 is a dual-band wireless router for home use launched by Tenda, designed for coverage in large homes and high-speed transmission. It supports 802.11acWave2 technology and has a maximum concurrent dual-band speed of 2033Mbps. Detailed vulnerability information is currently unavailable

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CVE-2023-0782 (GCVE-0-2023-0782)

Vulnerability from cvelistv5 – Published: 2023-02-11 17:00 – Updated: 2025-03-24 14:48

Title

Tenda AC23 httpd formGetSysToolDDNS out-of-bounds write

Summary

Severity ?

7.2 (High)


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

7.2 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-787 - Out-of-bounds Write

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.220640	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.220640	signaturepermissions-required
	https://github.com/jingping911/tendaAC23overflow/…	exploit

Impacted products

	Vendor	Product	Version
	Tenda	AC23	Affected: 16.03.07.45

Credits

wjp911 (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T05:24:34.451Z",
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            "url": "https://vuldb.com/?id.220640"
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              "exploit",
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            "url": "https://github.com/jingping911/tendaAC23overflow/blob/main/README.md"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-0782",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-24T14:47:17.087824Z",
                "version": "2.0.3"
              },
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-24T14:48:05.523Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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        {
          "product": "AC23",
          "vendor": "Tenda",
          "versions": [
            {
              "status": "affected",
              "version": "16.03.07.45"
            }
          ]
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      ],
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          "type": "analyst",
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was found in Tenda AC23 16.03.07.45 and classified as critical. Affected by this issue is the function formSetSysToolDDNS/formGetSysToolDDNS of the file /bin/httpd. The manipulation leads to out-of-bounds write. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-220640."
        },
        {
          "lang": "de",
          "value": "Eine Schwachstelle wurde in Tenda AC23 16.03.07.45 gefunden. Sie wurde als kritisch eingestuft. Davon betroffen ist die Funktion formSetSysToolDDNS/formGetSysToolDDNS der Datei /bin/httpd. Mit der Manipulation mit unbekannten Daten kann eine out-of-bounds write-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk erfolgen. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
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            "baseSeverity": "HIGH",
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            "vectorString": "AV:N/AC:L/Au:M/C:C/I:C/A:C",
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      "problemTypes": [
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          "descriptions": [
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          "url": "https://vuldb.com/?ctiid.220640"
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          "time": "2023-02-11T00:00:00.000Z",
          "value": "Advisory disclosed"
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          "lang": "en",
          "time": "2023-02-11T00:00:00.000Z",
          "value": "CVE reserved"
        },
        {
          "lang": "en",
          "time": "2023-02-11T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2023-03-10T09:15:51.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Tenda AC23 httpd formGetSysToolDDNS out-of-bounds write"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulDB",
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    "datePublished": "2023-02-11T17:00:26.679Z",
    "dateReserved": "2023-02-11T16:59:17.769Z",
    "dateUpdated": "2025-03-24T14:48:05.523Z",
    "state": "PUBLISHED"
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}

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.

Action not permitted

VAR-202302-0821

CVE-2023-0782 (GCVE-0-2023-0782)

Tags

Sightings

Nomenclature