CVE-2026-18607
Wavlink NU516 lighttpd upload.cgi strcpy stack-based overflow
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: no
- Technical impact: total
Summary
A security vulnerability has been detected in Wavlink WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc. WN529, WN530, WN531, WN535, WN536, WN551, WN557 and NU516 up to 20260609. Affected by this issue is the function strcpy of the file upload.cgi of the component lighttpd. The manipulation of the argument HTTP_COOKIE leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Wavlink WN572
20260609
- Wavlink WN570H
20260609
- Wavlink WN573
20260609
- Wavlink WN529
20260609
- Wavlink WN530
20260609
- Wavlink WN531
20260609
- Wavlink WN535
20260609
- Wavlink etc. WN529
20260609
- Wavlink WN530
20260609
- Wavlink WN531
20260609
- Wavlink WN535
20260609
- Wavlink WN536
20260609
- Wavlink WN551
20260609
- Wavlink WN557
20260609
- Wavlink NU516
20260609