CVE-2026-3661
This manipulation of the argument model causes command injection.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 18.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.
- CVSS 4.0
- 2.0 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:H/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
- 18.15% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-74, CWE-77
- Affected
- wavlink/wl-nu516u1 firmware
- Source
- cna@vuldb.com
EPSS moved from 10.9% on 24 September 2026 to 18.1% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://github.com/jinhao118/cve/blob/main/WAVLINK_1.mdExploit, Third Party Advisory
- https://vuldb.com/?ctiid.349550Permissions Required, VDB Entry
- https://vuldb.com/?id.349550Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.758227Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.