Cyber Resilience

CVE-2025-3328

Memory Safety in Tenda Ac1206 Firmware 15.03.06.23

Public PoCMemory Safety
Published
07 April 2025
Modified
07 April 2025
Patch / advisory
View advisory
CVSS Score v4 8.7
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.066 93th percentile
Risk Priority 46 floored blend · peak EPSS

Summary

CVE-2025-3328 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Ac1206 Firmware. Its CVSS base score is 8.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

A vulnerability identified as CVE-2025-3328 exists in the Tenda AC1206 router running firmware version 15.03.06.23. It resides in the form_fast_setting_wifi_set function within the /goform/fast_setting_wifi_set endpoint, where unsanitized input to the ssid or timeZone parameters triggers a buffer overflow. The flaw is tracked under CWE-119, CWE-120, and CWE-787 and carries a CVSS 4.0 score of 8.7 reflecting network-accessible, low-complexity remote exploitation with high impact on confidentiality, integrity, and availability.

An authenticated attacker with network connectivity can supply crafted values to the affected parameters and overflow the buffer, enabling remote code execution or denial of service. The vulnerability can be triggered without user interaction, and the public disclosure includes proof-of-concept material that demonstrates successful exploitation against the listed firmware.

Exploit details and additional parameter analysis have been published on GitHub along with entries in the Vuldb database; no vendor advisory or firmware patch addressing the issue is referenced in the available sources. The associated EPSS score remains low, moving only from 0.0222 to a peak of 0.0269.

EU & UK References

Vulnerability Data

A vulnerability was found in Tenda AC1206 15.03.06.23. It has been classified as critical. Affected is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. The manipulation of the argument ssid/timeZone leads to buffer overflow. It is possible to launch the attack…

more

remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well.

CWE(s)
CWE-119CWE-120CWE-787

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
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 →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-4298Same product: Tenda Ac1206
CVE-2025-4299Same product: Tenda Ac1206
CVE-2025-10432Same product: Tenda Ac1206
CVE-2025-7544Same product: Tenda Ac1206
CVE-2025-9523Same product: Tenda Ac1206
CVE-2024-7583Same vendor: Tenda
CVE-2025-60339Same vendor: Tenda
CVE-2024-46652Same vendor: Tenda
CVE-2024-44555Same vendor: Tenda
CVE-2024-7582Same vendor: Tenda

Affected Assets

tenda
ac1206 firmware
15.03.06.23

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V17.3.2
  • V5.2.1

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and analysis can find missing size checks before deployment.

SI-10 Information Input Validation good match

Input validation directly enforces size checks before buffer copies.

SA-15 Development Process, Standards, and Tools partial match

Requiring documented secure-development standards and tools can mandate bounds-checked coding practices that avoid the weakness.

SA-8 Security and Privacy Engineering Principles partial match

Secure engineering principles require memory-safe design and coding that structurally avoids buffer-boundary violations.

SI-16 Memory Protection partial match

Memory protection restricts exploitation impact of buffer overflows without eliminating the underlying coding flaw.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices (bounds checking, safe APIs, reviews) directly prevent this class of flaw.

ID.RA-01 partial match
prevents

Vulnerability scanning and code analysis directly surface buffer-boundary flaws.

ID.RA-08 partial match
prevents

Receiving and triaging vulnerability disclosures commonly includes buffer-related reports.

PR.AT-02 partial match
prevents

Developer training on secure coding reduces introduction of memory-buffer errors.

PR.PS-02 partial match
prevents

Patching replaces vulnerable code containing buffer-boundary defects.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding directly requires bounds-checked memory operations, addressing the root cause of CWE-120.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches out-of-bounds accesses before release, covering most instances of the weakness.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle mandates memory-safety practices that directly prevent buffer-boundary violations.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify memory-safety rules, but do not prescribe implementation details.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture and engineering principles include memory-safe design patterns that mitigate buffer overflows.

A.8.32 Change management partial match
prevents

Change management can enforce review gates that catch unsafe memory operations before deployment.

References