CVE-2026-120238

WAVLINK WN553X1-B ovpn_file ioos sub_4162A8 os command injection

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.

Affected

WAVLINK · WN553X1-B

CVSS v4.0 VULDB

8.6 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULDB

9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0 VULDB

9.0 HIGHAV:N/AC:L/Au:S/C:C/I:C/A:C

EPSS

1.69% chance of exploitation in the next 30 days, 77th percentile

Published

2026-11-01

Proof-of-concept exploits (1)

• senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_ovpn_fi…Repo stars 1★ · pushed 2026-08-24 · snapshot
  1 file

  WAVLINK WN553X1-B Router/WAVLINK_WN553X1-B_ovpn_file_command_injection.md

CVE references

• https://vuldb.com/cve/CVE-2026-120238ADVISORY
• https://vuldb.com/submit/919248ADVISORY
• https://vuldb.com/vuln/429597REFERENCE
• https://vuldb.com/vuln/429597/ctiREFERENCE

References

• CVE Record
• NVD entry

Related

• CVE-2026-101000
• CVE-2026-101001
• CVE-2026-101002
• CVE-2026-101072
• CVE-2026-101073
• CVE-2026-101074