CVE-2026-18589Wavlink WL-NU516U1 nas.cgi change_password stack-based overflow
Updated under an hour ago ()
Does this affect you?
It affects Wavlink WL-NU516U1. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
A vulnerability was found in Wavlink WL-NU516U1 708c073-mt7628. This impacts the function change_password of the file nas.cgi. The manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-121, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Wavlink WL-NU516U1 wavlink:wl-nu516u1_firmware | 708c073-mt7628 | CNA record |
References
- https://vuldb.com/vuln/385417vdb-entry, technical-description
- https://vuldb.com/vuln/385417/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-18589third-party-advisory
- https://vuldb.com/submit/850501third-party-advisory
- https://github.com/oduoke567/WAVLINK-NU516U1-2026-05-1/blob/main/report2.mdbroken-link
- https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-07-13-4b8a21f-mt7628-squashfs-sysupgrade.binbroken-link, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.