CVE-2026-36779: n/a
Shenzhen Tenda Technology Co., Ltd Tenda O3 Wireless Router v1.0.0.5(4180) was discovered to contain multiple stack overflows in the fromVirtualSer function via the puVar2, puVar1, __s2, __s1_00, and puVar3 parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
AI Analysis
Technical Summary
The Tenda O3 Wireless Router version 1.0.0.5(4180) contains multiple stack overflow vulnerabilities in the fromVirtualSer function. These vulnerabilities are exploitable through crafted HTTP requests that manipulate the parameters puVar2, puVar1, __s2, __s1_00, and puVar3. Successful exploitation results in a Denial of Service (DoS) by crashing the device or disrupting its normal operation. The CVSS v3.1 base score is 7.5, reflecting high severity due to network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability.
Potential Impact
Exploitation of these stack overflow vulnerabilities leads to Denial of Service (DoS), causing the affected router to become unavailable or unresponsive. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented. Users should monitor vendor communications for updates and consider limiting exposure of the affected device to untrusted networks until a patch is available.
CVE-2026-36779: n/a
Description
Shenzhen Tenda Technology Co., Ltd Tenda O3 Wireless Router v1.0.0.5(4180) was discovered to contain multiple stack overflows in the fromVirtualSer function via the puVar2, puVar1, __s2, __s1_00, and puVar3 parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Tenda O3 Wireless Router version 1.0.0.5(4180) contains multiple stack overflow vulnerabilities in the fromVirtualSer function. These vulnerabilities are exploitable through crafted HTTP requests that manipulate the parameters puVar2, puVar1, __s2, __s1_00, and puVar3. Successful exploitation results in a Denial of Service (DoS) by crashing the device or disrupting its normal operation. The CVSS v3.1 base score is 7.5, reflecting high severity due to network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability.
Potential Impact
Exploitation of these stack overflow vulnerabilities leads to Denial of Service (DoS), causing the affected router to become unavailable or unresponsive. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented. Users should monitor vendor communications for updates and consider limiting exposure of the affected device to untrusted networks until a patch is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2923ff8dd33fbd85129a96
Added to database: 06/10/2026, 08:44:47 UTC
Last enriched: 06/17/2026, 16:04:27 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 58
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