AC21
- Software type
- Operating system
- Total vulnerabilities (90 days)
- 0
Unreliable vulnerability data
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As of 11/07/2026, AC21 recorded 0 security vulnerabilities in the last 90 days, of which 0 are rated High or Critical. None of these vulnerabilities is actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of AC21 and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-4565Tenda AC21 SetNetControlList formSetQosBand buffer overflowCVE-2026-2148Tenda AC21 Web Management DownloadFlash information disclosureCVE-2026-2147Tenda AC21 Web Management DownloadLog information disclosureCVE-2026-1638Tenda AC21 mDMZSetCfg command injectionCVE-2026-1637Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-4565Tenda AC21 SetNetControlList formSetQosBand buffer overflow | Exploitation statusActively exploited | FixYes | Published03/23/2026 | SeverityHigh |
CVE-2026-2148Tenda AC21 Web Management DownloadFlash information disclosure | Exploitation statusActively exploited | FixNo | Published02/08/2026 | SeverityMedium |
CVE-2026-2147Tenda AC21 Web Management DownloadLog information disclosure | Exploitation statusActively exploited | FixNo | Published02/08/2026 | SeverityMedium |
CVE-2026-1638Tenda AC21 mDMZSetCfg command injection | Exploitation statusActively exploited | FixNo | Published01/29/2026 | SeverityMedium |
CVE-2026-1637Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow | Exploitation statusActively exploited | FixNo | Published01/29/2026 | SeverityHigh |
CVE-2025-13446Tenda AC21 SetSysTimeCfg stack-based overflow | Exploitation statusActively exploited | FixNo | Published11/20/2025 | SeverityHigh |
CVE-2025-13445Tenda AC21 SetIpMacBind stack-based overflow | Exploitation statusActively exploited | FixNo | Published11/20/2025 | SeverityHigh |
CVE-2025-12611Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow | Exploitation statusActively exploited | FixNo | Published11/03/2025 | SeverityHigh |
CVE-2025-11091Tenda AC21 SetStaticRouteCfg sscanf buffer overflow | Exploitation statusActively exploited | FixNo | Published09/28/2025 | SeverityHigh |
CVE-2025-10838Tenda AC21 WifiExtraSet sub_45BB10 buffer overflow | Exploitation statusActively exploited | FixNo | Published09/23/2025 | SeverityHigh |
CVE-2025-9605Tenda AC21/AC23 GetParentControlInfo stack-based overflow | Exploitation statusActively exploited | FixNo | Published08/29/2025 | SeverityCritical |
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