CVE-2026-78424

OS Command Injection in Packet-Capture (Sniffer) Filter leading to Remote Code Execution on Kubernetes Nodes

HIGH
8.8
CVSS Score
Published: September 28, 2026 at 11:44 AM UTC
Updated: September 29, 2026 at 09:32 PM UTC
2 products affected across 2 vendorsNeuvectorNeuVector

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Improper parameter handling in NeuVector allows any authenticated user who holds the namespaced Runtime Policies (write) permission or anyone with access to NeuVector’s internal gRPC certificate key pair the ability to inject OS commands in the privileged enforcer container, which can lead to the complete compromise of the worker node. This affects NeuVector 5.4 before 5.4.11, NeuVector 5.5 before 5.5.4, NeuVector 5.6 before 5.6.2 and potentially older versions.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
v < 5.4.115.5.0 ≤ v < 5.5.45.6.0 ≤ v < 5.6.25.5.05.6.0
Affected range stops below 5.4.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.5.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.6.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHsuse
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-78

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