Critical-Severity Os Command Injection Flaw in Wavlink WL-WN530BE1-A Tracked as CVE-2026-109108
A newly published critical vulnerability in Wavlink WL-WN530BE1-A carries a CVSS score of 9.4. Here is what is affected and how to respond.
Key points
- CVE-2026-109108 affects Wavlink WL-WN530BE1-A.
- CVSS 9.4 (Critical).
- No exploitation confirmed yet.
A critical OS command injection tracked as CVE-2026-109108 has been published in the National Vulnerability Database for Wavlink WL-WN530BE1-A, with a CVSS base score of 9.4.
At a glance
- CVE
- CVE-2026-109108
- Product
- Wavlink WL-WN530BE1-A
- CVSS
- 9.4 Critical
- Weakness
- OS command injection
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: A security vulnerability has been detected in Wavlink WL-WN530BE1-A 251117. This affects the function popen of the file /cgi-bin/uploadVpn.cgi. Such manipulation of the argument Type leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Wavlink | WL-WN530BE1-A | 251117 |
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-109108
- Patch scores alone ignore context like network exposure and asset criticality.
- You must map vulnerabilities to specific business risks to prioritize correctly.
- Continuous exposure data replaces static scanning for accurate prioritization.
Prioritize vulnerabilities by actual exploitability and business impact, not by theoretical severity scores. Update your asset context and exposure data continuously to maintain accurate risk rankings.
Step-by-step guide: Risk Based Vulnerability Management: Prioritize Fixes by Actual Threat
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-109108?
CVE-2026-109108 is a OS command injection vulnerability in Wavlink WL-WN530BE1-A.
How severe is CVE-2026-109108?
It has a CVSS score of 9.4 Critical.
Is CVE-2026-109108 being exploited?
There is no public confirmation of exploitation at the time of publication.
