CVE-2026-36820: n/a
A buffer overflow vulnerability exists in Shenzhen Tenda Technology Co. , Ltd Tenda W20E version 15. 11. 0. 6 in the webAuthWhiteUserInfo parameter of the formAddWebAuthWhiteUser function. This flaw can be exploited by an attacker sending a crafted HTTP request to cause a Denial of Service (DoS) condition. The vulnerability has a high severity rating with a CVSS score of 7. 5. No patch or official remediation has been confirmed at this time.
AI Analysis
Technical Summary
CVE-2026-36820 identifies a buffer overflow vulnerability in the webAuthWhiteUserInfo parameter of the formAddWebAuthWhiteUser function in Tenda W20E firmware version 15.11.0.6. This vulnerability allows unauthenticated remote attackers to trigger a denial of service by sending a specially crafted HTTP request. The vulnerability is classified under CWE-121 (Stack-based Buffer Overflow) and has a CVSS v3.1 base score of 7.5, indicating high severity. There is no vendor advisory or patch information currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation results in denial of service (DoS) without impacting confidentiality or integrity. The service may crash or become unavailable due to the buffer overflow triggered by malicious input in the specified parameter.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting exposure of the affected device to untrusted networks and monitoring for unusual HTTP requests targeting the vulnerable parameter.
CVE-2026-36820: n/a
Description
A buffer overflow vulnerability exists in Shenzhen Tenda Technology Co. , Ltd Tenda W20E version 15. 11. 0. 6 in the webAuthWhiteUserInfo parameter of the formAddWebAuthWhiteUser function. This flaw can be exploited by an attacker sending a crafted HTTP request to cause a Denial of Service (DoS) condition. The vulnerability has a high severity rating with a CVSS score of 7. 5. No patch or official remediation has been confirmed at this time.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-36820 identifies a buffer overflow vulnerability in the webAuthWhiteUserInfo parameter of the formAddWebAuthWhiteUser function in Tenda W20E firmware version 15.11.0.6. This vulnerability allows unauthenticated remote attackers to trigger a denial of service by sending a specially crafted HTTP request. The vulnerability is classified under CWE-121 (Stack-based Buffer Overflow) and has a CVSS v3.1 base score of 7.5, indicating high severity. There is no vendor advisory or patch information currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation results in denial of service (DoS) without impacting confidentiality or integrity. The service may crash or become unavailable due to the buffer overflow triggered by malicious input in the specified parameter.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting exposure of the affected device to untrusted networks and monitoring for unusual HTTP requests targeting the vulnerable parameter.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2876df8dd33fbd85785f06
Added to database: 6/9/2026, 8:26:07 PM
Last enriched: 6/9/2026, 8:41:44 PM
Last updated: 6/9/2026, 9:31:13 PM
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.