Ericsson released security updates for Packet Core Controller (PCC) to fix five vulnerabilities that can lead to privilege escalation, arbitrary code execution, information disclosure, and denial of service. The most severe issue, CVE-2025-59172, is a high-severity OS command injection flaw affecting PCC versions prior to 1.38 that could allow arbitrary code execution as root. Ericsson said the affected releases include PCC versions prior to 1.38 and, for some issues, versions prior to 1.39.
The bulletin also describes weaknesses in Configuration Management and the alarm system, including exposure of secrets through error messages, user enumeration, hardcoded credentials, and directory traversal. Ericsson said upgrading to PCC 1.38 or 1.39, depending on the vulnerability, remediates the issues, while the Canadian Centre for Cyber Security urged organizations to review Ericsson’s advisory and apply the necessary updates. Ericsson credited Spark NZ and researchers Radu Balaci and Meghna Patel of Bell Mobility with reporting the flaws.

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Ericsson's July 2026 security bulletin credits Spark NZ and researchers Radu Balaci and Meghna Patel of Bell Mobility for reporting five vulnerabilities in Ericsson Packet Core Controller. The bulletin does not provide a specific date for when the reports were made.
On 2026-07-24, the Canadian Centre for Cyber Security published advisory AV26-743 about Ericsson's Packet Core Controller vulnerabilities. The notice identified affected releases prior to 1.38 and prior to 1.39 and urged administrators to review Ericsson's bulletin and apply updates.
On 2026-07-24, Ericsson published a security bulletin for Packet Core Controller and released updates addressing five vulnerabilities, including CVE-2025-59172, a high-severity OS command injection flaw. Ericsson said upgrading to PCC versions 1.38 or 1.39, depending on the CVE, remediates the issues affecting earlier releases.
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