by Kastro
Paper/Archive/CVE-2025-32878

CVE-2025-32878

mitre — An issue was discovered on COROS PACE 3 devices through 3.0808.0.

EPSS 0.4%public exploitCVSS 9.8
critical.is priorityof 100
47
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 35.3.353 × 207.1Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refsyss.derefsupport.coros.com/hc/en-us/articles/20087694119828-COROS-PACE-3-Release-Notesrefsyss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-030.txt