CVE-2026-109108
Wavlink WL-WN530BE1-A uploadVpn.cgi popen os command injection
- Critical 9.9
- A public exploit reference is listed
Description
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.
Key facts
- Published
- 13 Oct 2026
- Last changed
- 16 Oct 2026
- Assigned by
- VulDB
- EPSS
- 1.652% likely to be exploited in the next 30 days, higher than 76.944% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: none; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.4CVSS 4.0, Criticalfrom the CNA (VulDB)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P - 9.9CVSS 3.1, Criticalfrom the CNA (VulDB)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C - 9.9CVSS 3.0, Criticalfrom the CNA (VulDB)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C - 9.0CVSS 2.0, Highfrom the CNA (VulDB)
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:C
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Wavlink | WL-WN530BE1-A |
|
Timeline
- 12 Oct 2026 Advisory disclosed
- 12 Oct 2026 VulDB entry created
- 12 Oct 2026 VulDB entry last update
- 13 Oct 2026 Published
Weakness
Practice this bug class
HackZoneLabs has a hands-on lab on OS command injection (CWE-78).