EUVD-2026-68200
GHSA-rhpr-6c55-q8q3
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
Network-reachable low-complexity overflow with full device impact, but the /boaform/admin/ path implies an authenticated session, so PR:L rather than PR:N; scope unchanged.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
6DescriptionCVE.org
A weakness has been identified in Tenda HG10 300001138. Affected by this issue is the function formIPv6Routing of the file /boaform/admin/formIPv6Routing of the component Boa Web Server. This manipulation of the argument destNet causes buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
AnalysisAI
Remote code execution and device takeover in the Tenda HG10 (firmware build 300001138) is possible through a stack buffer overflow in the Boa web server's formIPv6Routing handler, reachable at /boaform/admin/formIPv6Routing. An oversized destNet parameter overflows a fixed-size buffer (CWE-120), letting a remote attacker crash the device or execute arbitrary code with the web server's privileges. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires reaching the HG10's Boa web server and sending a request to the specific endpoint /boaform/admin/formIPv6Routing with an overlong destNet parameter. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The supplied CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N, all vulnerable- and subsequent-system impacts High, E:P) yields 9.3 and models an unauthenticated, low-complexity, network-reachable full compromise, which combined with public exploit code makes this a genuine priority for any exposed HG10. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch or fixed firmware version was identified in the provided data, so remediation currently relies on compensating controls rather than an upgrade; monitor https://www.tenda.com.cn/ and VulDB (https://vuldb.com/cve/CVE-2026-82542) for a corrected build and apply it once released. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Conduct complete inventory of all Tenda HG10 devices running firmware build 300001138 or earlier across your network; immediately isolate affected devices into a quarantined network segment and disable remote administrative access where operationally feasible. …
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Stack-based buffer overflow in Tenda HG7, HG9, and HG10 XPON ONT routers (firmware 300001138_en_xpon) allows authenticat
Stack-based buffer overflow in Tenda HG7HG9 and HG10 routers (firmware 300001138_en_xpon) allows remote attackers to cor
Stack-based buffer overflow in Tenda HG7, HG9, and HG10 ONT/router devices (firmware 300001138_en_xpon) allows authentic
Same weakness CWE-120 – Classic Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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