AC21 Firmware
29 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for AC21 Firmware, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.
AC21 Firmware CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 0 |
| 2025-05 | 0 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 1 |
| 2025-09 | 2 |
| 2025-10 | 0 |
| 2025-11 | 8 |
| 2025-12 | 0 |
| 2026-01 | 2 |
| 2026-02 | 2 |
| 2026-03 | 1 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 0 |
| 2026-08 | 0 |
| 2026-09 | 0 |
Severity
How the 29 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical1
- High20
- Medium8
Latest CVEs
The 15 most recently published vulnerabilities affecting AC21 Firmware.
- CVE-2026-4565Tenda AC21 SetNetControlList formSetQosBand buffer overflow8.8
- CVE-2026-2148Tenda AC21 Web Management DownloadFlash information disclosure5.3
- CVE-2026-2147Tenda AC21 Web Management DownloadLog information disclosure5.3
- CVE-2026-1638Tenda AC21 mDMZSetCfg command injection6.3
- CVE-2026-1637Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow8.8
- CVE-2025-13446Tenda AC21 SetSysTimeCfg stack-based overflow8.8
- CVE-2025-13445Tenda AC21 SetIpMacBind stack-based overflow8.8
- CVE-2025-65221Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the list parameter of /goform/setPptpUserList.4.3
- CVE-2025-65223Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the urls parameter of /goform/saveParentControlInfo.4.3
- CVE-2025-65222Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the rebootTime parameter of /goform/SetSysAutoRebbotCfg.4.3
- CVE-2025-65226Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the deviceId parameter in /goform/saveParentControlInfo.4.3
- CVE-2025-65220Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow in: /goform/SetVirtualServerCfg via the list parameter.4.3
- CVE-2025-12611Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow8.8
- CVE-2025-11091Tenda AC21 SetStaticRouteCfg sscanf buffer overflow8.8
- CVE-2025-10838Tenda AC21 WifiExtraSet sub_45BB10 buffer overflow8.8
Product grouping is registry-driven, with AI assist and human review. How it works