CVE-2026-5548: Stack-based Buffer Overflow in Tenda AC10
CVE-2026-5548 is a high-severity stack-based buffer overflow vulnerability in the Tenda AC10 router firmware version 16. 03. 10. 10_multi_TDE01. The flaw exists in the fromSysToolChangePwd function within the /bin/httpd component, where improper handling of the sys. userpass argument allows remote attackers to trigger a buffer overflow. This vulnerability can be exploited remotely without user interaction and requires low attack complexity. No official patch or remediation guidance has been published yet, and no known exploits are reported in the wild.
AI Analysis
Technical Summary
The Tenda AC10 router firmware 16.03.10.10_multi_TDE01 contains a stack-based buffer overflow vulnerability in the fromSysToolChangePwd function of the /bin/httpd binary. Remote attackers can manipulate the sys.userpass argument to overflow the stack, potentially leading to code execution or denial of service. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity with network attack vector, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code or cause a denial of service on affected Tenda AC10 devices. The vulnerability impacts confidentiality, integrity, and availability of the device. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the device management interface to trusted networks only to reduce exposure.
CVE-2026-5548: Stack-based Buffer Overflow in Tenda AC10
Description
CVE-2026-5548 is a high-severity stack-based buffer overflow vulnerability in the Tenda AC10 router firmware version 16. 03. 10. 10_multi_TDE01. The flaw exists in the fromSysToolChangePwd function within the /bin/httpd component, where improper handling of the sys. userpass argument allows remote attackers to trigger a buffer overflow. This vulnerability can be exploited remotely without user interaction and requires low attack complexity. No official patch or remediation guidance has been published yet, and no known exploits are reported in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Tenda AC10 router firmware 16.03.10.10_multi_TDE01 contains a stack-based buffer overflow vulnerability in the fromSysToolChangePwd function of the /bin/httpd binary. Remote attackers can manipulate the sys.userpass argument to overflow the stack, potentially leading to code execution or denial of service. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity with network attack vector, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code or cause a denial of service on affected Tenda AC10 devices. The vulnerability impacts confidentiality, integrity, and availability of the device. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the device management interface to trusted networks only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-04T13:28:04.091Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d240c80a160ebd92cc2125
Added to database: 4/5/2026, 11:00:24 AM
Last enriched: 4/5/2026, 11:15:25 AM
Last updated: 4/5/2026, 1:35:05 PM
Views: 6
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