There are buffer overflow vulnerabilities in multiple underlying services that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba Networks AP management protocol) UDP port (8211). Successful exploitation of these vulnerabilities results in the ability to execute arbitrary code as a privileged user on the underlying operating system of Aruba InstantOS 6.4.x: 6.4.4.8-4.2.4.20 and below; Aruba InstantOS 6.5.x: 6.5.4.23 and below; Aruba InstantOS 8.6.x: 8.6.0.18 and below; Aruba InstantOS 8.7.x: 8.7.1.9 and below; Aruba InstantOS 8.10.x: 8.10.0.1 and below; ArubaOS 10.3.x: 10.3.1.0 and below; Aruba has released upgrades for Aruba InnstantOS that address these security vulnerabilities.
Conclusion & alert: CVE-2022-37889 is rated Moderate Risk (64.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.54%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 1.23% | 1.54% | +0.31% |
| 2 | 2025-11-21 | 1.59% | 1.23% | -0.36% |
| 3 | 2025-11-18 | — | 1.59% | — |
Full EPSS history (27 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| arubanetworks | arubaos | >= 10.3.0.0, < 10.3.1.1 | cpe:2.3:o:arubanetworks:arubaos:*:*:*:*:*:*:*:* |
| arubanetworks | instant | >= 6.4.0.0, < 6.4.4.8-4.2.4.21 | cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:* |
| arubanetworks | instant | >= 6.5.0.0, < 6.5.4.24 | cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:* |
| arubanetworks | instant | >= 8.6.0.0, < 8.6.0.19 | cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:* |
| arubanetworks | instant | >= 8.7.0.0, < 8.7.1.10 | cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:* |
| arubanetworks | instant | >= 8.10.0.0, < 8.10.0.2 | cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:* |
| siemens | scalance_w1750d_firmware | — | cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdf | Third Party Advisory |
| https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-014.txt | Vendor Advisory |