SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-8227

A weakness has been identified in Wavlink NU516U1 240425.

LOW 2.1EPSS 8.07%

Does this matter?

Lower severity and a low EPSS score (8.07%). Track it; it rarely justifies an emergency change on its own.

Description

A weakness has been identified in Wavlink NU516U1 240425. This issue affects the function wzdapMesh of the file /cgi-bin/adm.cgi. This manipulation causes os command injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

CVSS 4.0
2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
8.07% probability · 95th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-77, CWE-78
Affected
wavlink/wl-nu516u1 firmware
Source
cna@vuldb.com
EPSS trend
0%5%10%24 September 2026: 8.51%26 October 2026: 8.07%24 September 202626 October 2026

EPSS moved from 8.5% on 24 September 2026 to 8.1% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

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