CVE-2026-18607
Status: DeferredHigh (7.4)—
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.
CVSS
- Version: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Base score: 7.4
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.79%
- Percentile among all scored CVEs: 55
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1210Exploitation of Remote Serviceslateral movement85 % - Primary impact
T1059Command and Scripting Interpreterexecution80 % - Secondary impact
T1068Exploitation for Privilege Escalationprivilege escalation75 %
Buffer overflow en upload.cgi accesible remotamente con PR:L (T1210). Stack corruption permite ejecución de código (T1059) y escalada de privilegios (T1068) en dispositivos Wavlink. CWE-119/121 confirman.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (12)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
CWEs
- CWE-119, CWE-121
References
Raw JSON (NVD)
Show
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"published": "2026-08-03T17:16:35.913",
"references": [
{
"url": "https://github.com/0xcc12138/WAVLINK-vul",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/cve/CVE-2026-18607",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/submit/852637",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/vuln/385530",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/vuln/385530/cti",
"source": "cna@vuldb.com"
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"weaknesses": [
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"source": "cna@vuldb.com",
"description": [
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"lang": "en",
"value": "CWE-119"
},
{
"lang": "en",
"value": "CWE-121"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"lastModified": "2026-08-12T21:00:37.147",
"sourceIdentifier": "cna@vuldb.com"
}