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CVE-2026-3275— Tenda F453 httpd addressNat fromAddressNat buffer 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/addressNat中参数entrys的操作不当，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.77% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-3275

Vulnerability Information
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Vulnerability Title
Tenda F453 httpd addressNat fromAddressNat buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in Tenda F453 1.0.0.3. This affects the function fromAddressNat of the file /goform/addressNat of the component httpd. Executing a manipulation of the argument entrys can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.
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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
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/addressNat中参数entrys的操作不当，可能导致缓冲区溢出。
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-2026-3275

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9463 chars
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III. Intelligence Information for CVE-2026-3275

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Other References for CVE-2026-3275 (1)

Same Patch Batch · Tenda · 2026-02-27 · 5 CVEs total

CVE-2026-3274 8.8 HIGH Tenda F453 httpd L7Prot frmL7ProtForm buffer overflow
CVE-2026-3273 8.8 HIGH Tenda F453 httpd AdvSetWrlsafeset formWrlsafeset buffer overflow
CVE-2026-3272 8.8 HIGH Tenda F453 httpd DhcpListClient fromDhcpListClient buffer overflow
CVE-2026-3271 8.8 HIGH Tenda F453 httpd P2pListFilterof fromP2pListFilter buffer overflow

IV. Related Vulnerabilities

Same product: F453
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2026-3275

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