CVE-2026-120238

CRITICAL 9.9

WAVLINK WN553X1-B ovpn_file ioos sub_4162A8 os command injection

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability has been found in WAVLINK WN553X1-B 260403_2.0.0. This affects the function sub_4162A8 of the file /bin/ioos of the component ovpn_file Handler. Such manipulation of the argument file_id leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

CWE	CWE-78 CWE-77
Vendor	wavlink
Product	wn553x1-b
Published	Nov 1, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

WAVLINK / WN553X1-B

260403_2.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/429597 vuldb.com: https://vuldb.com/vuln/429597/cti vuldb.com: https://vuldb.com/cve/CVE-2026-120238 vuldb.com: https://vuldb.com/submit/919248 github.com: https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_ovpn_file_command_injection.md

Credits

🔍 shuyi (VulDB User) VulDB CNA Team