# CVE-2025-56448: CVE-2025-56448

Status: published. Published: 2025-09-15. Updated: 2026-11-07.

The Positron PX360BT SW REV 8 car alarm system is vulnerable to a replay attack due to a failure in implementing rolling code security. The alarm system does not properly rotate or invalidate used codes, allowing repeated reuse of captured transmissions. This exposes users to significant security risks, including vehicle theft and loss of trust in the alarm's anti-cloning claims.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- positron / px360bt_firmware: rev8 (affected, custom). Source: NVD; conditional on NVD configuration criteria

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:positron:px360bt_firmware:rev8:*:*:*:*:*:*:*",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      },
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:h:positron:px360bt:8200101542:*:*:*:*:*:*:*",
            "vulnerable": false
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "AND"
  }
]
```

## Severity and prioritization

- CVSS 3.1: 6.8 (medium); CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation poc; automatable no; technical impact total; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-294

## Exploit evidence

- exploit: https://medium.com/@wagneralves_87750/cve-2025-56448-replay-attack-vulnerability-in-positron-px360bt-car-alarm-system-c9f1ccea6ebe (cve@mitre.org)

## References

- https://medium.com/@wagneralves_87750/cve-2025-56448-replay-attack-vulnerability-in-positron-px360bt-car-alarm-system-c9f1ccea6ebe (cve@mitre.org; Exploit, Third Party Advisory)

- https://positron.com.br/blog/positron-lanca-alarme-px360bt-starter/ (cve@mitre.org; Product)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-56448; retrieved 2026-11-07; source updated 2026-11-07

Revision: 3ad1c7bddb7fc7ac4acfd29809c26826fe9791f3d7d0823b5fcd46663100ee18

Canonical: https://y2.dev/cve/CVE-2025-56448

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.