CVE-2026-6197

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.5"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "f456", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-13T20:05:34.229238+00:00", "value": {"mitigation_remediation": ["Update Tenda F456 firmware to the latest version that contains the security fix.", "If a patch is not yet available, block remote access to the router\u2019s web\u2011management interface by restricting inbound traffic to its management ports or placing the router behind a firewall.", "Monitor router logs for repeated attempts to access /goform/AdvSetWrlsafeset and investigate any suspicious activity."], "summary": {"action": "Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability exists in Tenda F456 routers running firmware version\u202f1.0.0.5. No other vendors or product versions are listed as affected.", "description_and_impact": "The flaw is a stack\u2011based buffer overflow in the formWrlsafeset function of the /goform/AdvSetWrlsafeset endpoint on Tenda F456 routers. An attacker can manipulate the mit_ssid parameter to overflow the stack, enabling execution of arbitrary code from a remote location. This weakness involves both buffer overrun and stack corruption, allowing a crafted request to hijack control flow.", "risk_and_exploitability": "An exploit for this flaw has been published and can be triggered remotely, indicating that attackers can directly target affected devices. The CVSS score of\u202f8.7 signals a high severity level. While explicit modern exploitation probability data is unavailable, the existence of a public exploit demonstrates likely abuse. The flaw is not recorded in the Common Exploited Vulnerabilities catalog, but the remote code execution potential remains a critical risk."}}}}, "created": "2026-04-14T16:18:36.366359+00:00", "updated": "2026-04-14T16:33:44.042406+00:00", "vendors": ["tenda", "tenda$PRODUCT$f456"]}