Is CVE-2023-27866 actively exploited?

No active exploitation of CVE-2023-27866 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-27866 be exploited remotely?

Yes. CVE-2023-27866 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-27866?

CVE-2023-27866 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-27866

CRITICAL

CVE-2023-27866

CWE-94Published: June 28, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

IBM Informix JDBC Driver 4.10 and 4.50 is susceptible to remote code execution attack via JNDI injection when driver code or the application using the driver do not verify supplied LDAP URL in Connect String. IBM X-Force ID: 249511.

NVD Source

Risk Analysis

The IBM Informix JDBC Driver is vulnerable to remote code execution via JNDI injection if the LDAP URL is not properly verified. This critical flaw allows attackers to execute arbitrary code remotely.

No public exploit is known, and it is not included in the KEV catalog.

Recommended Action

Update the IBM Informix JDBC Driver to a version that properly validates LDAP URLs in the connection string.

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-2023-27866 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.