CVE-2026-8228
Published: 10 May 2026
Summary
CVE-2026-8228 is a low-severity Command Injection (CWE-77) vulnerability in Wavlink Wl-Nu516U1 Firmware. Its CVSS base score is 2.1 (Low).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 9.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A security vulnerability identified as CVE-2026-8228 affects the Wavlink NU516U1 firmware version 240425. It resides in the advance function within the /cgi-bin/wireless.cgi file, where improper handling of the wlan_conf/Channel/skiplist/ieee_80211h argument enables operating system command injection. The issue is tracked under CWE-77 and CWE-78 and carries a CVSS 4.0 score of 2.1.
The flaw can be exploited remotely by an authenticated attacker to inject and execute arbitrary operating system commands on the device. Public disclosure of the exploit code increases the potential for misuse, although the vendor was notified prior to publication.
The exploitation probability score has risen from a low of 0.0035 to a peak of 0.0106, indicating emerging interest in the vulnerability following its disclosure. Available references point to detailed technical descriptions on public repositories but do not include vendor-provided patches or mitigation guidance.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-28976
Vulnerability details
A security vulnerability has been detected in Wavlink NU516U1 240425. Impacted is the function advance of the file /cgi-bin/wireless.cgi. Such manipulation of the argument wlan_conf/Channel/skiplist/ieee_80211h leads to os command injection. The attack may be launched remotely. The exploit has been…
more
disclosed publicly and may be used. The vendor was contacted early about this disclosure.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Remote OS command injection (CWE-78) in public-facing CGI endpoint directly enables exploitation of public-facing applications (T1190) and arbitrary Unix shell command execution (T1059.004).
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.