Bluetooth® Low Energy Pairing in Bluetooth Core Specification v4.0 through v5.3 may permit an unauthenticated MITM to acquire credentials with two pairing devices via adjacent access when the MITM negotiates Legacy Passkey Pairing with the pairing Initiator and Secure Connections Passkey Pairing with the pairing Responder and brute forces the Passkey entered by the user into the Initiator. The MITM attacker can use the identified Passkey value to complete authentication with the Responder via Bluetooth pairing method confusion.
Conclusion & alert: CVE-2022-25836 is rated Moderate Risk (42.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.15%). 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 | 2025-11-21 | 0.12% | 0.15% | +0.03% |
| 2 | 2025-06-25 | 0.17% | 0.12% | -0.04% |
| 3 | 2025-05-23 | — | 0.17% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
1.2 | 5.8 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
1.2 | 5.8 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2022-25836 medium priority: Ubuntu including 167 source packages (linux, linux-allwinner, …), 1828 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1384, ignored 269, needs-triage 152, deferred 23. | https://ubuntu.com/security/CVE-2022-25836 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| bluetooth | bluetooth_core_specification | >= 4.0, <= 5.3 | cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:* |