NetMotion Mobility before 11.73 and 12.x before 12.02 allows unauthenticated remote attackers to execute arbitrary code as SYSTEM because of Java deserialization in RpcServlet.
Conclusion & alert: CVE-2021-26913 is rated High Exploit Risk (76/100): CVSS High severity, with high exploitation likelihood (EPSS 13.28%, 96th 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 |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | 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 | 2026-06-15 | 35.43% | 13.28% | -22.15% |
| 2 | 2025-11-21 | 41.20% | 35.43% | -5.77% |
| 3 | 2025-11-18 | — | 41.20% | — |
Full EPSS history (23 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.1 | 3.1 | HIGH |
|
2.2 | 5.9 | [email protected] |
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| netmotionsoftware | netmotion_mobility | < 11.73 | cpe:2.3:a:netmotionsoftware:netmotion_mobility:*:*:*:*:*:*:*:* |
| netmotionsoftware | netmotion_mobility | >= 12.0, < 12.02 | cpe:2.3:a:netmotionsoftware:netmotion_mobility:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://ssd-disclosure.com/?p=4676 | Exploit Third Party Advisory |
| https://ssd-disclosure.com/ssd-advisory-netmotion-mobility-server-multiple-deserialization-of-untrusted-data-lead-to-rce/ | Exploit Third Party Advisory |
| https://www.netmotionsoftware.com/security-advisories/security-vulnerability-in-mobility-web-server-november-19-2020 | Vendor Advisory |