{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-6988/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":8.8,"id":"CVE-2026-6988"}],"_cs_exploited":false,"_cs_products":["HG10 HG7_HG9_HG10re_300001138_en_xpon"],"_cs_severities":["critical"],"_cs_tags":["buffer-overflow","cve-2026-6988","tenda","iot"],"_cs_type":"advisory","_cs_vendors":["Tenda"],"content_html":"\u003cp\u003eA buffer overflow vulnerability, identified as CVE-2026-6988, has been discovered in Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon. The vulnerability resides within the Boa Service, specifically affecting the \u003ccode\u003eformRoute\u003c/code\u003e function located in the \u003ccode\u003e/boaform/formRouting\u003c/code\u003e file. Successful exploitation of this flaw enables a remote attacker to overwrite memory by crafting a malicious request with a manipulated \u003ccode\u003enextHop\u003c/code\u003e argument. This can lead to arbitrary code execution on the affected device. Given the potential for remote exploitation and the availability of a published exploit, this vulnerability poses a significant threat.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon device with the vulnerable Boa web service exposed.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request targeting the \u003ccode\u003e/boaform/formRouting\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eThe crafted request includes a specially crafted \u003ccode\u003enextHop\u003c/code\u003e argument, exceeding the buffer size allocated for it.\u003c/li\u003e\n\u003cli\u003eThe Boa service processes the request without proper bounds checking on the \u003ccode\u003enextHop\u003c/code\u003e argument.\u003c/li\u003e\n\u003cli\u003eThe oversized \u003ccode\u003enextHop\u003c/code\u003e argument overwrites adjacent memory regions, including critical program data or return addresses.\u003c/li\u003e\n\u003cli\u003eThe overwritten return address redirects execution flow to attacker-controlled code.\u003c/li\u003e\n\u003cli\u003eThe attacker executes arbitrary code on the device with the privileges of the Boa service.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control of the device, potentially leading to data exfiltration, device hijacking, or further network compromise.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-6988 can lead to complete compromise of the affected Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon device. This may result in unauthorized access to the device\u0026rsquo;s configuration, sensitive data exposure, or the device being used as a bot in a larger attack. Given that this device is likely used in home or small business environments, a successful attack could lead to significant data breaches, financial losses, and reputational damage. The availability of a public exploit increases the likelihood of widespread exploitation.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply available patches or firmware updates released by Tenda to address CVE-2026-6988 as soon as possible.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the exposure of Tenda devices to the internet or untrusted networks.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for suspicious activity targeting the \u003ccode\u003e/boaform/formRouting\u003c/code\u003e endpoint to detect potential exploit attempts (webserver log source).\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u0026ldquo;Detect Tenda HG10 Buffer Overflow Attempt\u0026rdquo; to identify malicious HTTP requests exploiting the \u003ccode\u003enextHop\u003c/code\u003e argument (Sigma rule).\u003c/li\u003e\n\u003cli\u003eImplement rate limiting on the \u003ccode\u003e/boaform/formRouting\u003c/code\u003e endpoint to mitigate potential brute-force exploitation attempts.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-25T18:18:16Z","date_published":"2026-04-25T18:18:16Z","id":"/briefs/2026-04-tenda-hg10-bo/","summary":"A buffer overflow vulnerability in Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon allows remote attackers to execute arbitrary code by manipulating the nextHop argument in the formRoute function of the /boaform/formRouting file, impacting device availability and integrity.","title":"Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon Buffer Overflow Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-04-tenda-hg10-bo/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2026-6988","version":"https://jsonfeed.org/version/1.1"}