What is CVE-2025-13926?

CVE-2025-13926 is a critical-severity vulnerability in Contemporary Controls Bascontrol20, classified under CWE-807. CVSS score: 9.8/10. Published 2026-04-09.

How severe is CVE-2025-13926?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Contemporary Controls Bascontrol20

CVE-2025-13926

An attacker could use data obtained by sniffing the network traffic to forge packets in order to make arbitrary requests to Contemporary Controls BASC 20T.

EPSS: 0.001 (27.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Contemporary Controls Bascontrol20 — versions 3.1

Weakness classification (CWE)

CWE-807

References

www.ccontrols.com/support/contacttech.htm
www.cisa.gov/news-events/ics-advisories/icsa-26-099-01
github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-099-01.js…

Frequently asked questions

What is CVE-2025-13926?: CVE-2025-13926 is a critical-severity vulnerability in Contemporary Controls Bascontrol20, classified under CWE-807. CVSS score: 9.8/10. Published 2026-04-09.
How severe is CVE-2025-13926?: Critical severity. CVSS v3 base score is 9.8 out of 10.