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

Source: https://junglewise.ai/threats/cve-2025-59181-ericsson-packet-core-controller-directory-traversal-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-27. Updated: 2026-07-27  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/packet-core-controller). Vendors: [Ericsson](https://junglewise.ai/threats/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

- [https://www.ericsson.com/en/about-us/security/psirt/security-bulletin-pcc-july-2026](https://www.ericsson.com/en/about-us/security/psirt/security-bulletin-pcc-july-2026)

## Related threats

- [Ericsson Packet Core Controller hardcoded credentials in alarm system](https://junglewise.ai/threats/cve-2025-59180-ericsson-packet-core-controller-hardcoded-credentials-in-alarm)
- [Ericsson Packet Core Controller information exposure in Configuration Management](https://junglewise.ai/threats/cve-2025-59178-ericsson-packet-core-controller-information-exposure-in)
- [Ericsson Packet Core Controller information disclosure in Configuration Management](https://junglewise.ai/threats/cve-2025-59177-ericsson-packet-core-controller-information-disclosure-in)
- [Ericsson Packet Core Controller OS command injection](https://junglewise.ai/threats/cve-2025-59172-ericsson-packet-core-controller-os-command-injection)
- [Ericsson Packet Core Controller denial of service via malformed messages](https://junglewise.ai/threats/cve-2025-59174-ericsson-packet-core-controller-denial-of-service-via-malformed)