CVE-2026-51380: n/a
A buffer overflow vulnerability exists in the Tenda AC10 v3 router firmware version 03.03.16.09. This flaw is triggered via the /cgi-bin/UploadCfg endpoint and can allow attackers to cause a permanent denial of service or potentially execute remote code. The vulnerability is classified as critical with a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability.
AI Analysis
Technical Summary
CVE-2026-51380 is a critical buffer overflow vulnerability (CWE-120) affecting Tenda AC10 v3 router firmware version 03.03.16.09. The vulnerability is exploitable remotely without authentication via the /cgi-bin/UploadCfg endpoint. Successful exploitation can lead to permanent denial of service or remote code execution. No official patch or remediation guidance is currently available from the vendor, and no known exploits have been reported in the wild as of the publication date.
Potential Impact
Exploitation of this vulnerability can result in complete compromise of the affected device, including permanent denial of service or arbitrary code execution. This impacts the confidentiality, integrity, and availability of the device and potentially the network it serves.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the /cgi-bin/UploadCfg endpoint and isolate affected devices from untrusted networks to reduce exposure.
CVE-2026-51380: n/a
Description
A buffer overflow vulnerability exists in the Tenda AC10 v3 router firmware version 03.03.16.09. This flaw is triggered via the /cgi-bin/UploadCfg endpoint and can allow attackers to cause a permanent denial of service or potentially execute remote code. The vulnerability is classified as critical with a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-51380 is a critical buffer overflow vulnerability (CWE-120) affecting Tenda AC10 v3 router firmware version 03.03.16.09. The vulnerability is exploitable remotely without authentication via the /cgi-bin/UploadCfg endpoint. Successful exploitation can lead to permanent denial of service or remote code execution. No official patch or remediation guidance is currently available from the vendor, and no known exploits have been reported in the wild as of the publication date.
Potential Impact
Exploitation of this vulnerability can result in complete compromise of the affected device, including permanent denial of service or arbitrary code execution. This impacts the confidentiality, integrity, and availability of the device and potentially the network it serves.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the /cgi-bin/UploadCfg endpoint and isolate affected devices from untrusted networks to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-07T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a57f59668715ace437838d3
Added to database: 07/15/2026, 21:03:18 UTC
Last enriched: 07/22/2026, 22:58:41 UTC
Last updated: 08/29/2026, 22:52:12 UTC
Views: 95
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.
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.