CVE-2026-6483
CVE-2026-6483 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-77.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- CVSS v2: 8.3
- CVSS v4: 7.3
- EPSS exploit prediction: 14% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-23403
- Weakness: CWE-77
- Published:
- Last modified:
Description
A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue. Upgrading the affected component is recommended.
Frequently asked questions
- What is CVE-2026-6483?
- A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue. Upgrading the affected component is recommended.
- How severe is CVE-2026-6483?
- CVE-2026-6483 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-6483 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-6483?
- 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-2026-6483 have an EU (EUVD) identifier?
- Yes. CVE-2026-6483 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23403.
- When was CVE-2026-6483 published?
- CVE-2026-6483 was published on 2026-04-17 and last updated on 2026-06-17.
References
- https://dl.wavlink.com/firmware/RD/root_uImage_WN530H4-A_2026.04.16.bin
- https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/vuldb_submission_report.md
- https://vuldb.com/submit/783055
- https://vuldb.com/vuln/358021
- https://vuldb.com/vuln/358021/cti
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