CVE-2025-55113: BMC Control-M/Agent unescaped NULL byte in access control list checks

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-16 · updated 2026-06-17
Weakness: CWE-158

Description

If the Access Control List is enforced by the Control-M/Agent and the C router is in use (default in Out-of-support Control-M/Agent versions 9.0.18 to 9.0.20 and potentially earlier unsupported versions; non-default but configurable using the JAVA_AR setting in newer versions), the verification stops at the first NULL byte encountered in the email address referenced in the client certificate. An attacker could bypass configured ACLs by using a specially crafted certificate.

Affected products

BMC Control-M/Agent: through 9.0.22

References

https://bmcapps.my.site.com/casemgmt/sc_KnowledgeArticle?sfdcid=000441967
https://bmcapps.my.site.com/casemgmt/sc_KnowledgeArticle?sfdcid=000442099

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