How severe is CVE-2026-6989?

CVE-2026-6989 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-6989 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6989?

CVE-2026-6989 affects Tenda F453 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6989?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-6989 have an EU (EUVD) identifier?

Yes. CVE-2026-6989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25665.

When was CVE-2026-6989 published?

CVE-2026-6989 was published on 2026-04-25 and last updated on 2026-06-17.

CVE-2026-6989

CVE-2026-6989 is a medium-severity vulnerability in Tenda F453 Firmware with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25665
Weakness: CWE-74
Affected product: Tenda F453 Firmware
Published: 2026-04-25
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-6989?: 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.
How severe is CVE-2026-6989?: CVE-2026-6989 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-6989 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6989?: CVE-2026-6989 affects Tenda F453 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6989?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-6989 have an EU (EUVD) identifier?: Yes. CVE-2026-6989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25665.
When was CVE-2026-6989 published?: CVE-2026-6989 was published on 2026-04-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:f453_firmware:1.0.0.3:*:*:*:*:*:*:*

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