CVE-2026-6989

Tenda F453 Telnet Service telnet TendaTelnet command injection

HIGH
8.8
CVSS Score
Published: April 25, 2026 at 05:15 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorF453 Firmware· also runs on 1 platform

Using F453 by Tenda?

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Severity
HIGH8.8
Exploit prediction
EPSS 3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

tenda-f453 (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/359541
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/359541/cti
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/submit/796560
ExploitIssue TrackingThird Party Advisory
Source: cverecord
https://github.com/alc9700jmo/CVE/issues/24
Product
Source: cverecord
https://www.tenda.com.cn/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-77CWE-74

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