EUVD-2026-77306
GHSA-xqq3-p9cq-5c28
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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 with low credentials required; only availability impacted per evidence; scope unchanged as crash affects only the router.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability was identified in Tenda W20E 15.11.0.61068_1546_841_CN_TDC. This issue affects the function formIPMacBindAdd of the component HTTP Handler. Such manipulation of the argument IPMacBindRule leads to stack-based buffer overflow. It is possible to launch the attack remotely.
AnalysisAI
Stack-based buffer overflow in the Tenda W20E router firmware (version 15.11.0.61068_1546_841_CN_TDC) allows a low-privileged remote attacker to crash the device by sending a crafted HTTP request with an oversized IPMacBindRule argument to the formIPMacBindAdd handler. A public researcher advisory exists on GitHub from Amalll-Sec, indicating the vulnerability has been analyzed and documented with reproduction steps. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires valid credentials to the Tenda W20E HTTP management interface (PR:L per CVSS - at minimum a low-privilege account), network access to the management port (typically TCP 80/443), and the specific firmware version 15.11.0.61068_1546_841_CN_TDC or potentially related builds. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VA:H) describes a network-reachable, low-complexity, low-privilege attack with confirmed high availability impact and no reported confidentiality or integrity loss. … 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 has been identified at time of analysis; the provided references point only to VulDB and a researcher advisory with no Tenda security bulletin. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all Tenda W20E routers in your inventory (especially version 15.11.0.61068_1546_841_CN_TDC and related 15.11.x versions) and immediately restrict HTTP/HTTPS administrative interface access to trusted management networks only via firewall rules. …
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Stack-based buffer overflow in Tenda W20E firmware 15.11.0.6(1068_1546_841)_CN_TDC enables remote low-privileged attacke
Stack-based buffer overflow in the Tenda W20E router (firmware 15.11.0.6) allows remote authenticated attackers to corru
Stack-based buffer overflow in Tenda W20E firmware 15.11.0.6 allows authenticated remote attackers to corrupt memory via
Stack-based buffer overflow in the Tenda W20E router (firmware 15.11.0.6) allows remote authenticated attackers to corru
Stack-based buffer overflow in Tenda W20E firmware 15.11.0.6(1068_1546_841)_CN_TDC allows remote low-privileged attacker
Stack-based buffer overflow in Tenda W20E firmware 15.11.0.6(1068_1546_841)_CN_TDC allows authenticated remote attackers
Stack-based buffer overflow in Tenda W20E firmware 15.11.0.61068_1546_841_CN_TDC allows authenticated remote attackers t
Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today