CVE-2026-4489
CVE-2026-4489 is a high-severity vulnerability 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-2026-13729
- Weakness: CWE-119
- Published:
- Last modified:
Description
A vulnerability was detected in Tenda A18 Pro 02.03.02.28. This vulnerability affects the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. The manipulation results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.
Frequently asked questions
- What is CVE-2026-4489?
- A vulnerability was detected in Tenda A18 Pro 02.03.02.28. This vulnerability affects the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. The manipulation results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.
- How severe is CVE-2026-4489?
- CVE-2026-4489 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-2026-4489 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.
- How do I fix CVE-2026-4489?
- 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-2026-4489 have an EU (EUVD) identifier?
- Yes. CVE-2026-4489 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13729.
- When was CVE-2026-4489 published?
- CVE-2026-4489 was published on 2026-03-20 and last updated on 2026-06-17.
References
- https://github.com/lilukun337/cve/issues/1
- https://vuldb.com/?ctiid.352015
- https://vuldb.com/?id.352015
- https://vuldb.com/?submit.773619
- https://www.tenda.com.cn/
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