CVE-2026-36821: n/a
A buffer overflow vulnerability exists in the picCropName parameter of the formCropAndSetWewifiPic function in Shenzhen Tenda Technology Co. , Ltd Tenda W20E v15. 11. 0. 6. This flaw allows an attacker to cause a Denial of Service (DoS) by sending a crafted HTTP request. The vulnerability has a high severity score of 7. 5 and is classified as CWE-121 (stack-based buffer overflow). No patch or official remediation information is currently available.
AI Analysis
Technical Summary
CVE-2026-36821 describes a buffer overflow vulnerability in the picCropName parameter of the formCropAndSetWewifiPic function in Tenda W20E firmware version 15.11.0.6. Exploitation requires sending a specially crafted HTTP request to the affected device, leading to a denial of service condition. The vulnerability is remotely exploitable without authentication (AV:N/AC:L/PR:N/UI:N) and impacts availability only, with no confidentiality or integrity impact. There is no known exploit in the wild and no vendor advisory or patch information has been provided to date.
Potential Impact
Successful exploitation results in denial of service, causing the affected device to become unresponsive or crash. There is no indication of confidentiality or integrity compromise. The vulnerability is remotely exploitable without privileges or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, network-level protections such as filtering or blocking suspicious HTTP requests targeting the vulnerable parameter may reduce exposure.
CVE-2026-36821: n/a
Description
A buffer overflow vulnerability exists in the picCropName parameter of the formCropAndSetWewifiPic function in Shenzhen Tenda Technology Co. , Ltd Tenda W20E v15. 11. 0. 6. This flaw allows an attacker to cause a Denial of Service (DoS) by sending a crafted HTTP request. The vulnerability has a high severity score of 7. 5 and is classified as CWE-121 (stack-based buffer overflow). No patch or official remediation information is currently available.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-36821 describes a buffer overflow vulnerability in the picCropName parameter of the formCropAndSetWewifiPic function in Tenda W20E firmware version 15.11.0.6. Exploitation requires sending a specially crafted HTTP request to the affected device, leading to a denial of service condition. The vulnerability is remotely exploitable without authentication (AV:N/AC:L/PR:N/UI:N) and impacts availability only, with no confidentiality or integrity impact. There is no known exploit in the wild and no vendor advisory or patch information has been provided to date.
Potential Impact
Successful exploitation results in denial of service, causing the affected device to become unresponsive or crash. There is no indication of confidentiality or integrity compromise. The vulnerability is remotely exploitable without privileges or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, network-level protections such as filtering or blocking suspicious HTTP requests targeting the vulnerable parameter may reduce exposure.
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: 6a2876df8dd33fbd85785f09
Added to database: 6/9/2026, 8:26:07 PM
Last enriched: 6/9/2026, 8:41:40 PM
Last updated: 6/9/2026, 9:31:13 PM
Views: 4
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