CVE-2023-27866

Name: CVE-2023-27866
Creator: NVD / NIST
Published: 2023-06-28T16:15:19.717+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2023-27866 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.88%

54.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ibm	Informix Jdbc Driver	>= 4.50.0, < 4.50.10
Ibm	Informix Jdbc Driver	4.10

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/249511VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/7007615Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/249511VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/7007615Patch, Vendor Advisory

Timeline

Published: Jun 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27866?

How severe is CVE-2023-27866?

CVE-2023-27866 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27866?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-27866?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST