What is CVE-2026-23759?

CVE-2026-23759 is a high-severity vulnerability in Perle Systems Iolan Scs, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-03-17.

How severe is CVE-2026-23759?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Perle Systems Iolan Scs

CVE-2026-23759

Perle IOLAN STS/SCS terminal server models with firmware versions prior to 6.0 allow authenticated OS command injection via the restricted shell accessed over Telnet or SSH. The shell 'ps' command does not perform proper argument sanitizat…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.002 (39.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Perle Systems Iolan Scs — versions 0
Perle Systems Iolan Sts — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-23759?: CVE-2026-23759 is a high-severity vulnerability in Perle Systems Iolan Scs, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-03-17.
How severe is CVE-2026-23759?: High severity. CVSS v3 base score is 7.2 out of 10.