Multiple stack-based buffer overflows in TP-Link WR940N WiFi routers with hardware version 4 allow remote authenticated users to execute arbitrary code via the (1) ping_addr parameter to PingIframeRpm.htm or (2) dnsserver2 parameter to WanStaticIpV6CfgRpm.htm.
Conclusion & alert: CVE-2017-13772 is rated High Exploit Risk (85/100): CVSS High severity, with high exploitation likelihood (EPSS 52.74%, 98th percentile). Core evidence: 2 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 |
|---|---|---|---|---|
| 48994 | exploit_db | edb | 2020-11-05 | Exploit-DB ↗ |
| 43022 | exploit_db | edb | 2017-10-17 | 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 | 2026-05-05 | 52.22% | 52.74% | +0.52% |
| 2 | 2025-11-14 | 68.85% | 52.22% | -16.63% |
| 3 | 2025-08-21 | — | 68.85% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| tp-link | wr940n_firmware | — | cpe:2.3:o:tp-link:wr940n_firmware:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/158999/TP-Link-WDR4300-Remote-Code-Execution.html | |
| https://www.exploit-db.com/exploits/43022/ | Third Party Advisory VDB Entry |
| https://www.fidusinfosec.com/tp-link-remote-code-execution-cve-2017-13772/ | Third Party Advisory |