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🛡️ CVE-2025-54470 — neuvector

🟠 CVSS 8.6 — High ✅ No Known Exploit CWE-295 NVD
8.6
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

NeuVector telemetry sender is vulnerable to MITM and DoS

Impact

This vulnerability affects NeuVector deployments only when the Report anonymous cluster data option is enabled. When this option is enabled, NeuVector sends anonymous telemetry data to the telemetry server at https://upgrades.neuvector-upgrade-responder.livestock.rancher.io.

In affected versions, NeuVector does not enforce TLS certificate verification when transmitting anonymous cluster data to the telemetry server. As a result, the communication channel is susceptible to man-in-the-middle (MITM) attacks, where an attacker could intercept or modify the transmitted data. Additionally, NeuVector loads the response of the telemetry server is loaded into memory without size limitation, which makes it vulnerable to a Denial of Service(DoS) attack.

The patched version includes the following security improvements:

  • NeuVector now verifies the telemetry server’s TLS certificate chain and hostname during the handshake process. This ensures that all telemetry communications occur over a trusted and verified channel.
  • NeuVector limits the telemetry server’s response to 256 bytes, mitigating the risk of memory exhaustion and DoS attacks.

These security enhancements are enabled by default and require no user action.

Patches

Patched versions include release v5.4.7 and above.

Workarounds

If you cannot update to a patched version, you can temporarily disable the Report anonymous cluster data, which is enabled by default in NeuVector.

To change this setting, go to Settings → Configuration → Report anonymous cluster data in the NeuVector UI.

Disabling this option prevents NeuVector from sending telemetry data to the telemetry server, which helps mitigate this vulnerability.

References

If you have any questions or comments about this advisory:

  • Reach out to the [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries.
  • Open an issue in the [NeuVector](https://github.com/neuvector/neuvector/issues/new/choose) repository.
  • Verify with our [support matrix](https://www.suse.com/suse-neuvector/support-matrix/all-supported-versions/neuvector-v-all-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/#suse-security).

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2025-54470 is classified as CWE-295: Improper Certificate Validation. A TLS certificate is accepted without proper verification, so a man-in-the-middle can present their own.

Affected software

CVE-2025-54470 is recorded against 2 packages.

  • github.com/neuvector/neuvector
  • unknown

Timeline and source

Published on 30 October 2025 and last revised on 2 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Advisory)
github.com (Web)
github.com (Web)

Other advisories for this package

github.com/neuvector/neuvector has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-295: Improper Certificate Validation) in other software:

Details

Severity HIGH
CVSS Score 8.6
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE CWE-295
Public Exploit ✅ No
Source NVD
Published 2025-10-30
Updated 2026-08-20
Modified 2026-07-02
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/neuvector/neuvector — —
unknown — —

Similar Threats

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