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CVE-2026-4553— Tenda F453 Parameters Natlimit fromNatlimit stack-based overflow

Quick assessment

Affected
Tenda F453
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tenda F453是中国腾达（Tenda）公司的一款无线路由器。 Tenda F453 1.0.0.3版本存在安全漏洞，该漏洞源于对文件/goform/Natlimit中参数page的错误操作，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 1.01% · P62
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I. Basic Information for CVE-2026-4553

Vulnerability Information
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Vulnerability Title
Tenda F453 Parameters Natlimit fromNatlimit stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in Tenda F453 1.0.0.3. Impacted is the function fromNatlimit of the file /goform/Natlimit of the component Parameters Handler. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda F453 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda F453是中国腾达（Tenda）公司的一款无线路由器。 Tenda F453 1.0.0.3版本存在安全漏洞，该漏洞源于对文件/goform/Natlimit中参数page的错误操作，可能导致栈缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tenda F453 1.0.0.3 cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-4553

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7805 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-4553

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Vendor Advisories for CVE-2026-4553 (2)

Other References for CVE-2026-4553 (1)

Same Patch Batch · Tenda · 2026-03-22 · 6 CVEs total

CVE-2026-4552 8.8 HIGH Tenda F453 Parameters VirtualSer fromVirtualSer memory corruption
CVE-2026-4551 8.8 HIGH Tenda F453 Parameters SafeClientFilter fromSafeClientFilter memory corruption
CVE-2026-4535 8.8 HIGH Tenda FH451 WrlclientSet stack-based overflow
CVE-2026-4534 8.8 HIGH Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflow
CVE-2026-4554 6.3 MEDIUM Tenda F453 WriteFacMac FormWriteFacMac privilege escalation

IV. Related Vulnerabilities

Same product: F453
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-4553

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