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CVE-2026-120238

CRITICAL
9.9NVD

Summary

generated automatically from NVD data

CVE-2026-120238 affects the WAVLINK WN553X1-B, version 260403_2.0.0. The function sub_4162A8 in /bin/ioos, part of the ovpn_file Handler component, mishandles the file_id argument, which allows OS command injection (CWE-77). The attack can be launched remotely, and the NVD description says the exploit has been disclosed publicly. The flaw is rated CRITICAL with a CVSS v3.1 score of 9.9.

NVD description

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.

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EPSS · FIRST.org

1.7%probability of exploitation in the next 30 days

Higher than 77% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-11-02, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

This CVE is covered in an article: context, affected versions and published fixes.

CVSS v3.1 Score

9.9
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Information

Published
1 nov. 2026
Updated
2 nov. 2026
Status
Deferred
Source
cna@vuldb.com

Weaknesses (CWE)

CWE-77CWE-78

Similar CVEs

Other vulnerabilities of type CWE-77

…

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