CVE-2025-32878

CRITICAL EPSS 26.5%
Published Jun 20, 20251y ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Jun 20, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

An issue was discovered on COROS PACE 3 devices through 3.0808.0. It implements a function to connect the watch to a WLAN. This function is mainly for downloading firmware files. Before downloading firmware files, the watch requests some information about the firmware via HTTPS from the back-end API. However, the X.509 server certificate within the TLS handshake is not validated by the device. This allows an attacker within an active machine-in-the-middle position, using a TLS proxy and a self-signed certificate, to eavesdrop and manipulate the HTTPS communication. This could be abused, for example, for stealing the API access token of the assigned user account.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
26.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-295

Affected Products 2

VendorProductVersionRange
yftechcoros_pace_3_firmware* ≤3.0808.0
yftechcoros_pace_3*any

References 3

  • support.coros.com https://support.coros.com/hc/en-us/articles/20087694119828-COROS-PACE-3-Release-Notes
    Release Notes
  • syss.de https://syss.de
    Third Party Advisory
  • syss.de https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-030.txt
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.