CVE-2025-13926

Contemporary Controls BASC 20T Reliance on Untrusted Inputs in a Security Decision

State: Published
Severity: 9.3 Critical
Published: Apr 9, 2026
Updated: Apr 10, 2026
Reserved: Dec 2, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	icscert
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	icscert

Weaknesses

CWE-807

Affected Products

Product	Versions
BASControl20Contemporary Controls	3.1Affected

References

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

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