CVE-2026-19790: Stack-based Buffer Overflow in Tenda G0 Radar - Latest Security Threats / 7h CVE-2026-19790 is a high-severity stack-based buffer overflow vulnerability in the Tenda G0 device affecting the httpd Web Management Interface component. The flaw exists in the formSetPortMirror function, where improper handling of the portMirrorMirroredPorts argument allows remote attackers to cause a buffer overflow. Exploit code is publicly available, but no official patch or remediation has been con

CVE-2026-19790 is a high-severity stack-based buffer overflow vulnerability in the Tenda G0 device affecting the httpd Web Management Interface component. The flaw exists in the formSetPortMirror function, where improper handling of the portMirrorMirroredPorts argument allows remote attackers to cause a buffer overflow. Exploit code is publicly available, but no official patch or remediation has been confirmed yet.

This vulnerability in Tenda G0 up to version 20260625 involves a stack-based buffer overflow triggered by manipulating the portMirrorMirroredPorts argument in the formSetPortMirror function of the /goform/module endpoint in the httpd Web Management Interface. The flaw allows remote attackers 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. Although exploit code is publicly available, no official vendor patch or mitigation guidance has been provided as of the publication date.

Successful exploitation can lead to stack-based buffer overflow, which may allow remote attackers to execute arbitrary code or cause denial of service on the affected device. The vulnerability affects the device's web management interface, which is typically accessible remotely, increasing the risk of exploitation.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented. Until a patch is available, restricting access to the web management interface and monitoring for exploitation attempts may reduce risk.

CVE-2026-19790 is a high-severity stack-based buffer overflow vulnerability in the Tenda G0 device affecting the httpd Web Management Interface component. The flaw exists in the formSetPortMirror function, where improper handling of the portMirrorMirroredPorts argument allows remote attackers to cause a buffer overflow. Exploit code is publicly available, but no official patch or remediation has been confirmed yet.

Machine-generated threat intelligence

This vulnerability in Tenda G0 up to version 20260625 involves a stack-based buffer overflow triggered by manipulating the portMirrorMirroredPorts argument in the formSetPortMirror function of the /goform/module endpoint in the httpd Web Management Interface. The flaw allows remote attackers 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. Although exploit code is publicly available, no official vendor patch or mitigation guidance has been provided as of the publication date.

Successful exploitation can lead to stack-based buffer overflow, which may allow remote attackers to execute arbitrary code or cause denial of service on the affected device. The vulnerability affects the device's web management interface, which is typically accessible remotely, increasing the risk of exploitation.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented. Until a patch is available, restricting access to the web management interface and monitoring for exploitation attempts may reduce risk.

Threat ID: 6a7f0f82bf8831d539122656

Added to database: 08/14/2026, 12:52:18 UTC

Last enriched: 08/14/2026, 12:53:09 UTC

Last updated: 08/14/2026, 19:40:59 UTC

Crowdsource mitigation strategies, 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.

Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.

Upgrade to Pro Console for AI refresh and higher limits.

For incident response and remediation, OffSeq services can help resolve threats faster.

Instant breach scanning across billions of leaked records. Free tier available.