PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-51845 Tenda CVE debrief

CVE-2026-51845 is a stack buffer overflow vulnerability in Tenda AC7 v15.03.06.44. The vulnerability exists in the /goform/AdvSetMacMtuWan interface via the mac parameter. Defenders should assess exposure and prioritize patching due to potential remote exploitation. The CVE was published on 2026-06-19 and has not been assessed for CVSS score or severity. Limited information is available, emphasizing the need for review of official advisories.

Vendor
Tenda
Product
AC7
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-19
Original CVE updated
2026-07-09
Advisory published
2026-06-19
Advisory updated
2026-07-09

Who should care

Organizations using Tenda AC7 v15.03.06.44 should assess their exposure and prioritize patching. Network administrators and cybersecurity teams responsible for managing network devices should review official advisories and consider potential remote exploitation risks.

Technical summary

The CVE-2026-51845 vulnerability is a stack buffer overflow in Tenda AC7 v15.03.06.44, specifically in the /goform/AdvSetMacMtuWan interface via the mac parameter. This type of vulnerability can allow remote attackers to execute arbitrary code or cause denial-of-service conditions. The CVSS score and severity have not been provided, but the potential for remote exploitation suggests a need for prompt attention.

Defensive priority

High priority due to potential remote exploitation and limited information available.

Recommended defensive actions

  • Review official vendor advisories for Tenda AC7 v15.03.06.44
  • Inventory Tenda AC7 devices and assess exposure
  • Apply patches or updates if available
  • Monitor network traffic for suspicious activity
  • Consider compensating controls if patches are not available

Evidence notes

The CVE-2026-51845 vulnerability is based on information from official sources, including CVE.org and NVD. The primary evidence is the CVE record and details from the NVD database. However, information is limited, and defenders should verify details from official sources. The affected product is Tenda AC7 v15.03.06.44, and the vulnerability exists in the /goform/AdvSetMacMtuWan interface via the mac parameter.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-51845 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-51845

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-51845 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-51845

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.