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Vulnerability record · CVE-2026-6989 · published 25 April 2026

CVE-2026-6989: Tenda f453 firmware injection vulnerability

Tenda · F453 Firmware

A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

2.1 CVSS 4.0 Low EPSS 6.3% · top 6.6% CWE-74 · InjectionCWE-77 · Command injection
2.1CVSS 4.0 base score, v2 6.5
6.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/alc9700jmo/CVE/issues/24 ExploitIssue TrackingThird Party Advisory
https://vuldb.com/submit/796560 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359541 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359541/cti Permissions RequiredVDB Entry
https://www.tenda.com.cn/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.4CVE-2026-5021Tenda f453 firmware memory buffer overflow vulnerabilityA flaw has been found in Tenda F453 1.0.0.3. This affects the function fromPPTPUserSetting of the file /goform/PPTPUserSetting of the component httpd…EPSS 1.0%7.4CVE-2026-4553Tenda f453 firmware memory buffer overflow vulnerabilityA vulnerability was identified in Tenda F453 1.0.0.3. Impacted is the function fromNatlimit of the file /goform/Natlimit of the component Parameters …EPSS 1.0%7.4CVE-2026-4551Tenda f453 firmware memory buffer overflow vulnerabilityA vulnerability was found in Tenda F453 1.0.0.3. This vulnerability affects the function fromSafeClientFilter of the file /goform/SafeClientFilter of…EPSS 1.0%7.4CVE-2026-4552Tenda f453 firmware memory buffer overflow vulnerabilityA vulnerability was determined in Tenda F453 1.0.0.3. This issue affects the function fromVirtualSer of the file /goform/VirtualSer of the component …EPSS 1.0%7.4CVE-2026-3768Tenda f453 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in Tenda F453 1.0.0.3. Affected by this vulnerability is the function formWrlExtraSet of the file /goform/…EPSS 1.0%7.4CVE-2026-3769Tenda f453 firmware memory buffer overflow vulnerabilityA vulnerability was detected in Tenda F453 1.0.0.3. Affected by this issue is the function WrlclientSet of the file /goform/WrlclientSet. The manipul…EPSS 1.0%7.4CVE-2026-3732Tenda f453 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in Tenda F453 1.0.0.3. This affects the function strcpy of the file /goform/exeCommand. The manipulation o…EPSS 1.0%7.4CVE-2026-3729Tenda f453 firmware memory buffer overflow vulnerabilityA vulnerability was identified in Tenda F453 1.0.0.3/3.As. Impacted is the function fromPptpUserAdd of the file /goform/PPTPDClient. Such manipulatio…EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2026-6989), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.