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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "V240425"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "WL-NU516U1", "source": "cna", "vendor": "Wavlink"}, "product": "wl-nu516u1", "vendor": "wavlink"}], "analysis": {"en": {"generated_at": "2026-04-17T12:29:17.955718+00:00", "value": {"mitigation_remediation": ["Apply the latest firmware update published by Wavlink that patches the stack\u2011based buffer overflow in login.cgi.", "Restrict HTTP access to the router\u2019s administrative interface to trusted devices only, for example by configuring VLANs or firewall rules to block external requests to /cgi-bin/login.cgi.", "Change the default administrator credentials to a strong, unique password and enforce password complexity policies."], "summary": {"action": "Assess Impact", "impact": "Potential Remote Code Execution (inferred)"}, "threat_synthesis": {"affected_systems": "Wavlink WL-NU516U1 routers running firmware version V240425 are affected. No other vendors or product lines are listed in the CVE data.", "description_and_impact": "The vulnerability resides in the function sub_401A0C within the /cgi-bin/login.cgi script of the Wavlink WL-NU516U1 V240425 firmware. Manipulating the ipaddr argument results in a stack-based buffer overflow (CWE-119/121). The official description does not explicitly state the resulting impact beyond the overflow, but the nature of the flaw suggests that code execution could be possible if the overflow is fully leveraged. The CVE note that the attack can be launched remotely does not confirm exploitation outcomes, so the precise impact remains inferred.", "risk_and_exploitability": "The CVSS score of 8.6 denotes a high severity level. EPSS is below 1%, indicating a low but non-zero probability of exploitation; the vulnerability is not currently cataloged in the CISA KEV list. Public exploit code exists and the flaw can be triggered remotely via the login.cgi interface without requiring privileged access, which could allow attackers to attempt exploitation over the network."}}}}, "created": "2026-03-06T14:56:14.187728+00:00", "updated": "2026-04-17T12:30:06.284155+00:00", "vendors": ["wavlink", "wavlink$PRODUCT$wl-nu516u1"]}