What is CVE-2025-35021?

CVE-2025-35021 is a medium-severity vulnerability in Abilis Cpx, classified under Initialization of a Resource with an Insecure Default. CVSS score: 6.5/10. Published 2025-11-04.

How severe is CVE-2025-35021?

Medium severity. CVSS v3 base score is 6.5 out of 10.

RCE in Abilis Cpx

CVE-2025-35021

By failing to authenticate three times to an unconfigured Abilis CPX device via SSH, an attacker can login to a restricted shell on the fourth attempt, and from there, relay connections.

EPSS: 0.003 (22.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

References

cve@takeonme.org (Exploit, technical-description, Third Party Advisory, Mitigation, third-party-advisory)
cve@takeonme.org (Exploit, technical-description, Third Party Advisory, Mitigation, third-party-advisory)
cve@takeonme.org (vendor-advisory, Release Notes)

Frequently asked questions

What is CVE-2025-35021?: CVE-2025-35021 is a medium-severity vulnerability in Abilis Cpx, classified under Initialization of a Resource with an Insecure Default. CVSS score: 6.5/10. Published 2025-11-04.
How severe is CVE-2025-35021?: Medium severity. CVSS v3 base score is 6.5 out of 10.