CVE-2026-4552
Published: 22 March 2026
Summary
CVE-2026-4552 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda F453 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 25.6th 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).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly remediates the stack-based buffer overflow flaw in the fromVirtualSer function by requiring timely identification, reporting, and correction of the vulnerability.
Requires validation of the 'page' argument at the input point in /goform/VirtualSer to block malformed inputs that trigger the buffer overflow.
Deploys memory safeguards like stack canaries or non-executable stacks to prevent unauthorized code execution even if the buffer overflow occurs.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in router web form handler (/goform/VirtualSer) allows remote authenticated attacker to send crafted HTTP request achieving arbitrary code execution on public-facing management interface.
NVD Description
A vulnerability was determined in Tenda F453 1.0.0.3. This issue affects the function fromVirtualSer of the file /goform/VirtualSer of the component Parameters Handler. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack may be…
more
performed from remote. The exploit has been publicly disclosed and may be utilized.
Deeper analysisAI
CVE-2026-4552 is a stack-based buffer overflow vulnerability affecting the Tenda F453 router on firmware version 1.0.0.3. The flaw exists in the fromVirtualSer function of the /goform/VirtualSer file within the Parameters Handler component, triggered by manipulation of the 'page' argument. Associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow), it was published on 2026-03-22 and carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
A remote attacker with low privileges can exploit this vulnerability over the network with low attack complexity and no user interaction. Exploitation involves sending a crafted request to overflow the stack, potentially enabling arbitrary code execution and granting high impacts to confidentiality, integrity, and availability.
Advisories provide further details, including a GitHub proof-of-concept at https://github.com/Litengzheng/vul_db/blob/main/F453/vul_87/README.md and VulDB entries at https://vuldb.com/?ctiid.352379, https://vuldb.com/?id.352379, and https://vuldb.com/?submit.774930. The Tenda website at https://www.tenda.com.cn/ is referenced for vendor information.
The exploit has been publicly disclosed and may be utilized by attackers.
Details
- CWE(s)