CVE-2025-7528
Published: 13 July 2025
Summary
CVE-2025-7528 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda Fh1202 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 29.8% 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 are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
SI-2 requires timely identification, reporting, testing, and correction of the stack-based buffer overflow flaw in the Tenda FH1202 firmware's GstDhcpSetSer function.
SI-10 mandates validation of the 'dips' argument at the /goform/GstDhcpSetSer input point to directly prevent the stack-based buffer overflow.
SI-16 provides memory protections like stack canaries and non-executable stacks to mitigate arbitrary code execution from exploitation of the buffer overflow.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in the public-facing web interface (/goform/GstDhcpSetSer) of Tenda FH1202 router enables remote code execution via crafted 'dips' parameter, facilitating exploitation of public-facing applications.
NVD Description
A vulnerability classified as critical has been found in Tenda FH1202 1.2.0.14(408). Affected is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer. The manipulation of the argument dips leads to stack-based buffer overflow. It is possible to launch the attack remotely.…
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The exploit has been disclosed to the public and may be used.
Deeper analysisAI
CVE-2025-7528 is a critical stack-based buffer overflow vulnerability (CWE-119, CWE-121) affecting the Tenda FH1202 router running firmware version 1.2.0.14(408). The flaw resides in the fromGstDhcpSetSer function within the /goform/GstDhcpSetSer endpoint, where manipulation of the "dips" argument triggers the overflow.
The vulnerability enables remote exploitation over the network by an attacker possessing low privileges (PR:L), with low attack complexity and no requirement for user interaction. Successful exploitation grants high-impact outcomes across confidentiality, integrity, and availability (C:H/I:H/A:H), as reflected in its CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U). This could allow arbitrary code execution or system compromise on the targeted device.
Advisories reference a public exploit disclosure on GitHub at https://github.com/panda666-888/vuls/blob/main/tenda/fh1202/fromGstDhcpSetSer.md, along with VulDB entries (https://vuldb.com/?ctiid.316224, https://vuldb.com/?id.316224, https://vuldb.com/?submit.612948) and the vendor site at https://www.tenda.com.cn/. Practitioners should consult these for firmware updates or workarounds, as the disclosed exploit may facilitate active attacks.
Details
- CWE(s)