CVE-2026-3400 (GCVE-0-2026-3400)

Vulnerability from cvelistv5 – Published: 2026-03-01 23:32 – Updated: 2026-03-02 15:44
VLAI
Title
Tenda AC15 TextEditingConversion stack-based overflow
Summary
A security flaw has been discovered in Tenda AC15 up to 15.13.07.13. Affected by this issue is some unknown functionality of the file /goform/TextEditingConversion. The manipulation of the argument wpapsk_crypto2_4g results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 15:41 UTC
CWE
References
URL Tags
https://vuldb.com/?id.348295 vdb-entrytechnical-description
https://vuldb.com/?ctiid.348295 signaturepermissions-required
https://vuldb.com/?submit.760109 third-party-advisory
https://www.yuque.com/ba1ma0-an29k/nnxoap/tzg68ia… exploit
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version CPE status
Tenda AC15 Affected: 15.13.07.0
Affected: 15.13.07.1
Affected: 15.13.07.2
Affected: 15.13.07.3
Affected: 15.13.07.4
Affected: 15.13.07.5
Affected: 15.13.07.6
Affected: 15.13.07.7
Affected: 15.13.07.8
Affected: 15.13.07.9
Affected: 15.13.07.10
Affected: 15.13.07.11
Affected: 15.13.07.12
Affected: 15.13.07.13
    cpe:2.3:o:tenda:ac15_firmware:*:*:*:*:*:*:*:*
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Show details on NVD website

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                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 9,
                "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-121",
                  "description": "Stack-based Buffer Overflow",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-119",
                  "description": "Memory Corruption",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-03-01T23:32:12.937Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-348295 | Tenda AC15 TextEditingConversion stack-based overflow",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/?id.348295"
            },
            {
              "name": "VDB-348295 | CTI Indicators (IOB, IOC, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/?ctiid.348295"
            },
            {
              "name": "Submit #760109 | Tenda A15 V15.13.07.13 Stack-based Buffer Overflow",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/?submit.760109"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://www.yuque.com/ba1ma0-an29k/nnxoap/tzg68iadbmqx6esm?singleDoc#"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://www.tenda.com.cn/"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-03-01T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-03-01T01:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-03-01T07:41:40.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "Tenda AC15 TextEditingConversion stack-based overflow"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-3400",
        "datePublished": "2026-03-01T23:32:12.937Z",
        "dateReserved": "2026-03-01T06:36:35.761Z",
        "dateUpdated": "2026-03-01T23:32:12.937Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

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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.


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