Tenda AC6 V15.03.06.23_multi was discovered to contain a buffer overflow via the ntpServer parameter in the fromSetSysTime function.
Conclusion & alert: CVE-2025-55499 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-25 | 0.04% | 0.05% | +0.01% |
| 2 | 2026-01-16 | 0.06% | 0.04% | -0.02% |
| 3 | 2025-10-01 | — | 0.06% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.2 | 4.2 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| tenda | ac6_firmware | 15.03.06.23 | cpe:2.3:o:tenda:ac6_firmware:15.03.06.23:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/SolitaryGrass/IoT_vuln/blob/main/tenda/AC6/AC6V2.0RTL_V15.03.06.23/fromSetSysTime/poc.md | Exploit Third Party Advisory |