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Vulnerability record · CVE-2025-69763 · published 21 January 2026

CVE-2025-69763: Tenda ax3 firmware stack-based buffer overflow vulnerability

Tenda · Ax3 Firmware

Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the vlanId parameter, which can cause memory corruption and enable remote code execution.

9.8 CVSS 3.1 Critical EPSS 0.91% · top 41.7% CWE-121 · Stack-based buffer overflow
9.8CVSS 3.1 base score
0.91%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the vlanId parameter, which can cause memory corruption and enable remote code execution.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formSetIptv-2c9a595a7aef8025a3c6c4b102d95dd4 ExploitThird Party Advisory
https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formSetIptv-2c9a595a7aef8025a3c6c4b102d95dd4?source=copy ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-69764Tenda ax3 firmware stack-based buffer overflow vulnerabilityTenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the stbpvid stack buff…EPSS 1.1%9.8CVE-2025-69762Tenda ax3 firmware stack-based buffer overflow vulnerabilityTenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the list parameter, which can cause memory corruption and enable remote …EPSS 0.91%9.8CVE-2025-69766Tenda ax3 firmware stack-based buffer overflow vulnerabilityTenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the citytag stack buff…EPSS 0.79%9.8CVE-2023-51812Tenda ax3 firmware command injection vulnerabilityTenda AX3 v16.03.12.11 was discovered to contain a remote code execution (RCE) vulnerability via the list parameter at /goform/SetNetControlList.EPSS 1.1%9.8CVE-2023-49408Tenda ax3 firmware out-of-bounds write vulnerabilityTenda AX3 V16.03.12.11 was discovered to contain a stack overflow via the function set_device_name.EPSS 0.92%9.8CVE-2023-49409Tenda ax3 firmware vulnerabilityTenda AX3 V16.03.12.11 was discovered to contain a Command Execution vulnerability via the function /goform/telnet.EPSS 1.5%9.8CVE-2023-27239Tenda ax3 firmware out-of-bounds write vulnerabilityTenda AX3 V16.03.12.11 was discovered to contain a stack overflow via the shareSpeed parameter at /goform/WifiGuestSet.EPSS 0.84%9.8CVE-2023-27240Tenda ax3 firmware command injection vulnerabilityTenda AX3 V16.03.12.11 was discovered to contain a command injection vulnerability via the lanip parameter at /goform/AdvSetLanip.EPSS 2.8%

Source: NIST National Vulnerability Database (record CVE-2025-69763), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.