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CVE-2025-59181 Ericsson CVE debrief

A directory traversal vulnerability exists in Ericsson Packet Core Controller (PCC) versions prior to 1.39 in the Configuration Management component. This vulnerability could allow an attacker to change directory permissions, potentially denying access to legitimate users. The vulnerability has been identified in the Configuration Management component of Ericsson Packet Core Controller (PCC) versions prior to 1.39. The issue allows an attacker to change directory permissions, which could lead to a denial of access for legitimate users. The vulnerability's impact on access control mechanisms and potential denial of access to legitimate users necessitates verification of PCC versions

Vendor
Ericsson
Product
Packet Core Controller (PCC)
CVSS
MEDIUM 4.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-27
Original CVE updated
2026-09-29
Advisory published
2026-07-27
Advisory updated
2026-09-29

Who should care

Defenders responsible for Ericsson PCC deployments should assess exposure and verify PCC versions to ensure they are not vulnerable. They should prioritize verifying PCC versions and assessing exposure due to the potential impact on access control mechanisms and potential denial of access to legitimate users. Additionally, defenders should review and update directory permissions, and monitor the Configuration

Why it matters

Defenders should prioritize verifying PCC versions and assessing exposure due to the potential impact on access control mechanisms and potential denial of access to legitimate users.

  • Potential denial of access to legitimate users
  • Impact on access control mechanisms
  • Need for verification of PCC versions and directory permissions

Technical summary

The vulnerability exists in the Configuration Management component of Ericsson Packet Core Controller (PCC) versions prior to 1.39. An attacker could exploit this vulnerability to change directory permissions, potentially impacting access control. The vulnerability allows an attacker to change directory permissions in the Configuration Management component of Ericsson Packet Core Controller (PCC) versions prior to 1.39. This could impact access control mechanisms, potentially denying access to legitimate users.

Defensive priority

Defenders should prioritize verifying PCC versions and assessing exposure, as the vulnerability could impact access control.

Recommended defensive actions

  • Verify PCC version and assess exposure
  • Review and update directory permissions
  • Monitor Configuration Management component for suspicious activity

Evidence notes

The CVE record and NVD entry provide details on the directory traversal vulnerability in Ericsson PCC. The vendor has provided a security bulletin addressing the issue.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-59181 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-59181

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-59181 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-59181

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://www.ericsson.com/en/about-us/security/psirt/security-bulletin-pcc-july-2026

    85b1779b-6ecd-4f52-bcc5-73eac4659dcf

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.