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Vulnerability record · CVE-2025-70648 · published 21 January 2026

CVE-2025-70648: Tenda ax1803 firmware stack-based buffer overflow vulnerability

Tenda · Ax1803 Firmware

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow in the security_5g parameter of the sub_727F4 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

7.5 CVSS 3.1 High EPSS 0.36% · top 72.6% CWE-121 · Stack-based buffer overflow
7.5CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow in the security_5g parameter of the sub_727F4 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

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

Affected products

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

References

LinkTags
https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-1803/6/1.md ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2024-30620Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the serviceName parameter in the function fromAdvSetMacMtuWan.EPSS 0.82%9.8CVE-2024-30621Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the serverName parameter in the function fromAdvSetMacMtuWan.EPSS 0.74%9.8CVE-2023-51962Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function setIptvInfo.EPSS 0.73%9.8CVE-2023-51967Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.port parameter in the function getIptvInfo.EPSS 0.73%9.8CVE-2023-51968Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the adv.iptv.stballvlans parameter in the function getIptvInfo.EPSS 0.73%9.8CVE-2023-51969Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.city.vlan parameter in the function getIptvInfo.EPSS 0.73%9.8CVE-2023-51970Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function formSetIptv.EPSS 0.73%9.8CVE-2023-51953Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function formSetIptv.EPSS 0.70%

Source: NIST National Vulnerability Database (record CVE-2025-70648), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.