SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2026-120229

A vulnerability has been found in WAVLINK WN553X1-B 260403_2.0.0.

HIGH 8.5EPSS 2.82%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been found in WAVLINK WN553X1-B 260403_2.0.0. This issue affects the function sub_416B50 of the file /bin/ioos. The manipulation of the argument file_id leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

CVSS 4.0
8.5 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/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/M
EPSS
2.82% probability · 87th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-77, CWE-78
Source
cna@vuldb.com
EPSS trend
0%3%5%2 November 2026: 2.82%3 November 2026: 2.82%2 November 20263 November 2026

EPSS moved from 2.8% on 2 November 2026 to 2.8% on 3 November 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.