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Ericsson Packet Core Controller (PCC) CVE-2025-59172

| EUVDEUVD-2025-210512 HIGH
OS Command Injection (CWE-78)
2026-07-27 ERIC GHSA-8j5f-6vjg-rf7w
8.5
CVSS 4.0 · Vendor: ERIC
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain high-privilege credentials
  2. Exploit
    Access adjacent network management interface
  3. Execution
    Send crafted command injection payload
  4. Impact
    Execute arbitrary code as root

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires adjacent network access to the PCC management interface and high-privilege credentials (administrator). The attacker must be authenticated with high privileges before injecting commands; unauthenticated remote exploitation is not possible. The vulnerability is not exploitable against default configurations without these prerequisites.

Impact

CVSS 4.0 base score 8.5 indicates high severity, but the real-world risk is reduced by the adjacent network (AV:A) and high privileges (PR:H) requirements. Exploitation requires an attacker to already have high-level credentials and be on the same network as the PCC, limiting the attack surface to insiders or compromised adjacent systems. No EPSS or KEV data is available; no public exploit is known. While the impact is critical (full system compromise as root), the pre-authentication and network adjacency constraints make widespread exploitation unlikely. The vulnerability is a high-priority concern for organizations deploying PCC but not an internet-scale risk.

Exploit ScenarioDerived

An attacker who has already compromised an administrator account on the PCC's network segment could send a crafted request to the vulnerable command execution endpoint, injecting OS commands that execute with root privileges, leading to full system takeover.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 27, 2026

Command injection in Ericsson Packet Core Controller (PCC) prior to version 1.38 allows authenticated high-privilege attackers with adjacent network access to execute arbitrary code as root. The vulnerability stems from improper sanitization of special elements (CWE-78) in OS command execution. No public exploit or active exploitation reported.

RemediationAI

Upgrade to Ericsson Packet Core Controller version 1.38 or later, as specified in the vendor advisory. No workaround is provided; restrict network access to the management interface to trusted adjacent networks and enforce strong, unique credentials for all privileged accounts. Monitor for unauthorized access attempts.

Affected VersionsENISA

Packet Core Controller (PCC) 0 <1.38

Affected Packages

euvd packet_core_controller_pcc fix: 1.38

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability is an OS command injection (CWE-78) in Ericsson Packet Core Controller, a software component handling mobile packet core functions. The CPE data indicates all versions prior to 1.38 are affected. The product likely processes input and passes it to a system shell without proper filtering, enabling execution of arbitrary commands. The attack vector adjacent network (AV:A) suggests the management interface is not exposed to the internet but accessible on the same network segment.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (ERIC) PRIMARY 8.5 HIGH
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
vuln.today AI 6.8 MEDIUM

Adjacent network attack vector and high privileges required; full compromise as root.

3.1 AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.0 AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (ERIC).

CVSS VectorVendor: ERIC

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch available
Jul 27, 2026 - 15:02 EUVD
CVE Published
Jul 27, 2026 - 14:03 cve.org
HIGH 8.5

DescriptionCVE.org

Ericsson Packet Core Controller (PCC) versions prior to 1.38 contain an Improper Neutralization of Special Elements vulnerability allowing an attacker to execute arbitrary code as root.

Threat Intelligence Overview

EPSS Score
0.2%
Top 92% exploitable
Prevalence
Low
specialized telecom core controller, limited deployments
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Controlled
Automatable
No
Human Impact· derived
Medium
Technical Impact
Total

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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