[ CVE-2026-120228 · Published 1 Nov 2026 ]
Vulnerability in WAVLINK WN553X1-B
CVSS 9.9
EPSS 2%No fix listed yet
[ Why it matters ]Priority signals
- Public proof-of-concept exploit exists (CISA SSVC)
- Critical severity: CVSS 9.9
[ Description ]Official description
A flaw has been found in WAVLINK WN553X1-B V260403_2.0.0. This vulnerability affects the function sub_416D88 of the file /bin/ioos of the component ioos Service. Executing a manipulation of the argument group_id/group_name can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.