CVE-2025-54470 is a high-severity (CVSS 8.6) CWE-295 vulnerability in github.com/neuvector/neuvector. A fix is available for github.com/neuvector/neuvector — see the affected versions and patch details below.
NeuVector telemetry sender is vulnerable to MITM and DoS
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-54470.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2025-54470 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 378,156 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
github.com/neuvector/neuvectorReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
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 chainandhostnameduring 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 for security related inquiries.
- Open an issue in the NeuVector repository.
- Verify with our support matrix and product support lifecycle.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/neuvector/neuvector | ≥ 0.0.0-20230727023453-1c4957d53911&&< 0.0.0-20251020133207-084a437033b4 | 0.0.0-20251020133207-084a437033b4go get github.com/neuvector/neuvector@v0.0.0-20251020133207-084a437033b4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/neuvector/neuvector, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/neuvector/neuvector to 0.0.0-20251020133207-084a437033b4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-54470 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-54470 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2025-54470. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-54470 in your dependencies?
O3 Security finds CVE-2025-54470 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.