Cyber Resilience

CVE-2025-69765

HighPublic PoC

Published: 03 March 2026

Published
03 March 2026
Modified
04 March 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0013 32.2th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-69765 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Tenda Ax3 Firmware. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).

Deeper analysis

CVE-2025-69765 is a stack overflow vulnerability affecting Tenda AX3 firmware version v16.03.12.11, specifically in the formGetIptv function due to improper handling of the list parameter. This issue, classified as CWE-121, can lead to memory corruption and remote code execution. The vulnerability received a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) and was published on 2026-03-03T18:16:24.193.

Unauthenticated remote attackers can exploit this vulnerability over the network with low attack complexity and no user interaction required. Exploitation triggers stack-based memory corruption in the affected function, enabling potential remote code execution and high-impact disruption to availability, as indicated by the CVSS metrics.

Mitigation details and further technical analysis are available in the referenced advisory at https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formGetIptv-2c9a595a7aef809db06fc8677ad4b2ba.

EU & UK References

Vulnerability details

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

CWE(s)
CWE-121

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Stack-based buffer overflow in exposed formGetIptv handler of router firmware web interface directly enables unauthenticated remote code execution against a public-facing network service.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2025-69766Same product: Tenda Ax3
CVE-2025-69764Same product: Tenda Ax3
CVE-2025-69763Same product: Tenda Ax3
CVE-2025-69762Same product: Tenda Ax3
CVE-2025-71023Same product: Tenda Ax3
CVE-2025-71026Same product: Tenda Ax3
CVE-2025-55603Same product: Tenda Ax3
CVE-2025-71027Same product: Tenda Ax3
CVE-2025-71024Same product: Tenda Ax3
CVE-2025-55605Same product: Tenda Ax3

Affected Assets

tenda
ax3 firmware
16.03.12.11

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of the list parameter input to formGetIptv to prevent stack overflow and memory corruption.

SI-16 Memory Protection good match
prevent

Implements memory safeguards like stack canaries or DEP to protect against exploitation of the stack overflow for remote code execution.

SI-2 Flaw Remediation good match
prevent

Mandates timely patching of the specific firmware flaw in Tenda AX3 v16.03.12.11 to remediate the stack overflow vulnerability.

References