How severe is CVE-2026-5989?

CVE-2026-5989 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-5989 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5989?

CVE-2026-5989 affects Tenda F451 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5989?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-5989 have an EU (EUVD) identifier?

Yes. CVE-2026-5989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21239.

When was CVE-2026-5989 published?

CVE-2026-5989 was published on 2026-04-10 and last updated on 2026-06-17.

CVE-2026-5989

CVE-2026-5989 is a high-severity vulnerability in Tenda F451 Firmware with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21239
Weakness: CWE-119
Affected product: Tenda F451 Firmware
Published: 2026-04-10
Last modified: 2026-06-17

Description

A flaw has been found in Tenda F451 1.0.0.7. Affected is the function fromRouteStatic of the file /goform/RouteStatic. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

Frequently asked questions

What is CVE-2026-5989?: A flaw has been found in Tenda F451 1.0.0.7. Affected is the function fromRouteStatic of the file /goform/RouteStatic. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.
How severe is CVE-2026-5989?: CVE-2026-5989 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-5989 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5989?: CVE-2026-5989 affects Tenda F451 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5989?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-5989 have an EU (EUVD) identifier?: Yes. CVE-2026-5989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21239.
When was CVE-2026-5989 published?: CVE-2026-5989 was published on 2026-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:f451_firmware:1.0.0.7:*:*:*:*:*:*:*

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