High severity · published Apr 25, 2026
CVE-2026-6989
Tenda F453 Telnet Service telnet TendaTelnet command injection
8.8
CVSS
3.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
F4
F453 · Tenda
1.0.0.0; 1.0.0.1; 1.0.0.2; 1.0.0.3 · source: vendor
FF
F453 Firmware · Tenda
1.0.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6989
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6989
Exploit
https://github.com/alc9700jmo/CVE/issues/24
Third Party Advisory
https://vuldb.com/submit/796560
Third Party Advisory
https://vuldb.com/vuln/359541
Permissions Required
https://vuldb.com/vuln/359541/cti
Product
https://www.tenda.com.cn/
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