{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-7078/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":8.8,"id":"CVE-2026-7078"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["F456"],"_cs_severities":["critical"],"_cs_tags":["buffer-overflow","router","remote-code-execution","cve-2026-7078"],"_cs_type":"advisory","_cs_vendors":["Tenda"],"content_html":"\u003cp\u003eA critical buffer overflow vulnerability, identified as CVE-2026-7078, affects Tenda F456 router firmware version 1.0.0.5. The vulnerability resides in the \u003ccode\u003efromSetIpBind\u003c/code\u003e function within the \u003ccode\u003e/goform/SetIpBind\u003c/code\u003e file, part of the httpd component. A remote attacker can exploit this vulnerability by crafting a malicious HTTP request with a manipulated \u003ccode\u003epage\u003c/code\u003e argument, leading to arbitrary code execution on the device. The public availability of this exploit increases the risk of widespread exploitation and potential compromise of vulnerable Tenda F456 routers. This is critical for defenders to address because successful exploitation gives attackers full control of the router.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable Tenda F456 router with firmware version 1.0.0.5 exposed to the internet.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP GET or POST request targeting the \u003ccode\u003e/goform/SetIpBind\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eWithin the request, the attacker includes a specially crafted \u003ccode\u003epage\u003c/code\u003e argument designed to trigger the buffer overflow in the \u003ccode\u003efromSetIpBind\u003c/code\u003e function.\u003c/li\u003e\n\u003cli\u003eThe \u003ccode\u003ehttpd\u003c/code\u003e component processes the request without proper bounds checking on the \u003ccode\u003epage\u003c/code\u003e argument.\u003c/li\u003e\n\u003cli\u003eThe oversized \u003ccode\u003epage\u003c/code\u003e argument overwrites adjacent memory regions in the stack, including the return address.\u003c/li\u003e\n\u003cli\u003eThe \u003ccode\u003efromSetIpBind\u003c/code\u003e function attempts to return, but the overwritten return address redirects execution to attacker-controlled code.\u003c/li\u003e\n\u003cli\u003eThe attacker-controlled code executes with the privileges of the \u003ccode\u003ehttpd\u003c/code\u003e process, typically root.\u003c/li\u003e\n\u003cli\u003eThe attacker gains complete control over the device, enabling them to modify settings, intercept traffic, or use the router as a botnet node.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this buffer overflow vulnerability allows a remote attacker to gain complete control over the affected Tenda F456 router. This could lead to unauthorized access to the local network, data theft, or the use of the router as a botnet node. Given the ease of exploitation and the public availability of the exploit, a large number of devices could be compromised if left unpatched. This could lead to large-scale DDoS attacks or widespread data breaches.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor web server logs for requests to \u003ccode\u003e/goform/SetIpBind\u003c/code\u003e with abnormally long \u003ccode\u003epage\u003c/code\u003e parameters, which could indicate exploitation attempts (see the provided Sigma rule).\u003c/li\u003e\n\u003cli\u003eImplement rate limiting on requests to \u003ccode\u003e/goform/SetIpBind\u003c/code\u003e to reduce the impact of potential exploitation attempts.\u003c/li\u003e\n\u003cli\u003eConsider deploying a web application firewall (WAF) rule to filter out malicious requests targeting the \u003ccode\u003e/goform/SetIpBind\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eApply any available patches or firmware updates released by Tenda to address CVE-2026-7078.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-03T12:00:00Z","date_published":"2024-01-03T12:00:00Z","id":"https://feed.craftedsignal.io/briefs/2024-01-03-tenda-f456-buffer-overflow/","summary":"A buffer overflow vulnerability in the `fromSetIpBind` function of Tenda F456 version 1.0.0.5 allows remote attackers to execute arbitrary code by manipulating the `page` argument in a request to `/goform/SetIpBind`.","title":"Tenda F456 Remote Buffer Overflow Vulnerability","url":"https://feed.craftedsignal.io/briefs/2024-01-03-tenda-f456-buffer-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed - Cve-2026-7078","version":"https://jsonfeed.org/version/1.1"}