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CVE-2026-4554— Tenda F453 WriteFacMac FormWriteFacMac privilege escalation

Quick assessment

Affected
Tenda F453
Exploitation
High exploitation probability; assess promptly
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版本存在命令注入漏洞，该漏洞源于对文件/goform/WriteFacMac中参数mac的错误操作，可能导致命令注入。

CVSS 6.3 · Medium EPSS 6.47% · P94
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I. Basic Information for CVE-2026-4554

Vulnerability Information
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Vulnerability Title
Tenda F453 WriteFacMac FormWriteFacMac privilege escalation
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Tenda F453 1.0.0.3. The affected element is the function FormWriteFacMac of the file /goform/WriteFacMac. The manipulation of the argument mac results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may 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:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda F453 命令注入漏洞
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版本存在命令注入漏洞，该漏洞源于对文件/goform/WriteFacMac中参数mac的错误操作，可能导致命令注入。
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-2026-4554

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III. Intelligence Information for CVE-2026-4554

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Vendor Advisories for CVE-2026-4554 (2)

Other References for CVE-2026-4554 (1)

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

CVE-2026-4553 8.8 HIGH Tenda F453 Parameters Natlimit fromNatlimit stack-based overflow
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

IV. Related Vulnerabilities

Same product: F453
Same vendor: Tenda
Same weakness: CWE-77

V. Comments for CVE-2026-4554

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