CVE-2025-59181: Ericsson Packet Core Controller directory traversal in Configuration Management

CVE-2025-59181 · Severity: info · CVSS 4.8 · Published 2026-07-27

Ericsson Packet Core Controller (PCC), a critical component in mobile telecommunications networks, is affected by a security flaw in its configuration management system. An attacker with high-level administrative access could exploit this to modify folder permissions on the system. This could lead to a denial of service by preventing legitimate users or system processes from accessing necessary files, potentially disrupting mobile network operations.

Technologies: Ericsson Packet Core Controller. Vendors: Ericsson.

Quick answers

Is CVE-2025-59181 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-59181 being exploited in the wild.
How severe is CVE-2025-59181?
Informational severity, with a CVSS score of 4.8, published 27 July 2026.
Which products and versions are affected?
Ericsson Packet Core Controller versions prior to 1.39.
Is there a fix for CVE-2025-59181?
A patch was published on 1.39: Vulnerability fixed in version 1.39. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-59181 attacked?
It is attacked from the adjacent network, in a network appliance.
Am I affected by CVE-2025-59181?
Check whether you run Ericsson Packet Core Controller at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A path traversal vulnerability (CWE-35) exists in the Configuration Management component of Ericsson Packet Core Controller (PCC) versions prior to 1.39. The flaw allows an authenticated attacker with high privileges (PR:H) to traverse the file system via adjacent network access (AV:A). By exploiting this, the attacker can modify directory permissions, which can result in a partial loss of integrity and availability by locking out legitimate users or system services. The issue is resolved in PCC version 1.39.

Affected products

  • Ericsson Packet Core Controller (PCC) versions prior to 1.39

Timeline

  • 2026-07-27: advisory: Initial disclosure by Ericsson and NVD publication.
  • 1.39: patched: Vulnerability fixed in version 1.39.

References

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