Is CVE-2023-33190 actively exploited?

No active exploitation of CVE-2023-33190 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-33190 be exploited remotely?

Yes. CVE-2023-33190 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-33190?

CVE-2023-33190 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-33190

CWE-287Published: June 29, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Sealos is an open source cloud operating system distribution based on the Kubernetes kernel. In versions of Sealos prior to 4.2.1-rc4 an improper configuration of role based access control (RBAC) permissions resulted in an attacker being able to obtain cluster control permissions, which could control the entire cluster deployed with Sealos, as well as hundreds of pods and other resources within the cluster. This issue has been addressed in version 4.2.1-rc4. Users are advised to upgrade. There are no known workarounds for this vulnerability.

NVD Source

Risk Analysis

Sealos contains a misconfiguration in RBAC permissions that allows attackers to gain cluster control. This critical vulnerability grants control over the entire Kubernetes cluster and its resources.

No public exploit is known, and it is not in the CISA KEV. It is remotely exploitable.

Recommended Action

Upgrade to Sealos version 4.2.1-rc4 or later.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-33190 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.