Is CVE-2023-50477 actively exploited?

No active exploitation of CVE-2023-50477 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-50477 be exploited remotely?

Yes. CVE-2023-50477 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-50477?

CVE-2023-50477 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-50477

CRITICAL

CVE-2023-50477

NVD-CWE-OtherPublished: December 21, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue was discovered in nos client version 0.6.6, allows remote attackers to escalate privileges via getRPCEndpoint.js.

NVD Source

Risk Analysis

The nos client version 0.6.6 contains a critical vulnerability that allows remote attackers to escalate privileges via getRPCEndpoint.js. This flaw carries a CVSS score of 9.8, indicating a high risk of unauthorized access.

No public exploit is known for this vulnerability, and it is not in the KEV database. The flaw is remotely exploitable with low attack complexity.

Recommended Action

Update the nos client to a patched version if available. Restrict access to RPC endpoints to trusted users only.

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-2023-50477 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.