TI-2026-83663 Aliases CVE-2026-120276 GHSA-jxgh-x37p-hq3v

OS command injection in WAVLINK WN536AX6-A web management interface

HIGH 82CWE-77Published 2026-11-01 · Updated 2026-11-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

The web management interface of WAVLINK WN536AX6-A from V260507_2.0.0 fails to neutralize the group_name argument of function sub_416760 in /bin/ioos, which allows OS command injection (CWE-78). An unauthenticated remote attacker can run operating system commands without user interaction. The exploit has been made available to the public.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

A weakness has been identified in WAVLINK WN536AX6-A V260507_2.0.0. This vulnerability affects the function sub_416760 of the file /bin/ioos of the component Web Management Interface. This manipulation of the argument group_name causes os command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.03211 88th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Wavlink	WN536AX6-A	V260507_2.0.0	—	No fix listed	CNA

WN536AX6-A VendorWavlink Affected V260507_2.0.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wavlink:wn536ax6-a::::::::	—	—	Wavlink

cpe:2.3:a:wavlink:wn536ax6-a:*:*:*:*:*:*:*:* Versions — — ·Wavlink

Remediation

The sources list no fixed version for WAVLINK WN536AX6-A.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Timeline

2026-11-01 Threatist record created from CVE-2026-120276
2026-11-02 Alias added: GHSA-jxgh-x37p-hq3v
2026-11-05 CISA SSVC decision points changed
2026-11-05 Priority changed: MEDIUM → HIGH

References

Exploit 1

https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A%20Router/WAVLINK_WN536AX6-A_openvpn_cli_group_command_injection.md

TI-2022-02298 WAVLINK WN535K2/WN535K3 nightled.cgi os command injection CVSS 3.1CRITICAL 9.8
TI-2026-83752 OS command injection in WAVLINK WN551X3-A DNS resolution handler CVSS 4.0CRITICAL 10.0
TI-2026-83751 WAVLINK WN551X3-A WireGuard CLI Group ioos os command injection CVSS 4.0CRITICAL 10.0
TI-2026-83668 Stack-based overflow in WAVLINK WN536AX6-A OpenVPN handler CVSS 4.0CRITICAL 10.0
TI-2026-83667 OS command injection in WAVLINK WN536AX6-A WireGuard handler CVSS 4.0CRITICAL 10.0
TI-2026-83666 OS command injection in WAVLINK WN536AX6-A openvpn_cli handler CVSS 4.0CRITICAL 10.0

See all 248 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences