How severe is CVE-2026-48027?

CVE-2026-48027 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2026-48027?

Affected package information for CVE-2026-48027 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2026-48027?

No fixed version has been published for CVE-2026-48027 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2026-48027 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-48027 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-48027?

CVE-2026-48027 has an EPSS (Exploit Prediction Scoring System) score of 32.1%, placing it in the 97th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

Is CVE-2026-48027 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2026-48027 (Nx Console Embedded Malicious Code Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-05-27. CISA required all US federal civilian agencies to remediate this vulnerability by 2026-06-10. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This CVE has been used in known ransomware campaigns. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2026-48027?

CVE-2026-48027 is classified as CWE-506 (CWE-506). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2026-48027?

CVE-2026-48027 affects nx nx console (1 version, e.g. 18.95.0). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2026-48027 published, and has it been updated?

CVE-2026-48027 was published on May 27, 2026 and was last updated on May 27, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2026-48027: Nx Console CWE-506 (Critical 9.8)

EPSS Exploitation Probability

via FIRST.org ↗

32.1%probability of exploitation in next 30 days

Moderate Risk97th percentile+5.22%

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.

Description

Nx Console is the user interface for Nx & Lerna. On 19 May 2026, a malicious version of Nx Console, 18.95.0, was published at 12:30 PM UTC and removed soon after at 12:48 PM UTC, leaving it available for ~18 minutes in Visual Studio Marketplace. For OpenVSX, the problem was detected later, and the compromised version was available from 12:33 UTC to 13:09 UTC (~36 minutes). Version 18.100.0 of Nx Console is not compromised and users may remediate by upgrading to that version.

Affected Products

1 product · 1 configurations

Application

nx consolenx

1 version

18.95.0

Frequently Asked Questions

Nx Console is the user interface for Nx & Lerna. On 19 May 2026, a malicious version of Nx Console, 18.95.0, was published at 12:30 PM UTC and removed soon after at 12:48 PM UTC, leaving it available for ~18 minutes in Visual Studio Marketplace. For OpenVSX, the problem was detected later, and the compromised version was available from 12:33 UTC to 13:09 UTC (~36 minutes). Version 18.100.0 of Nx Console is not compromised and users may remediate by upgrading to that version.

O3 Security · Impact-Aware SCA

Is CVE-2026-48027 in your stack?

O3 detects CVE-2026-48027 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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