CVE-2026-12118 — CRITICAL (9.8)

Vulnerability Description

IBM webMethods Integration (on prem) 10.15, 10.11 could allow an unauthenticated remote attacker to execute arbitrary code on the system due to the deserialization of untrusted data.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-502

References

https://www.ibm.com/support/pages/node/7278857

FAQ

What is CVE-2026-12118?

CVE-2026-12118 is a vulnerability with a CVSS score of 9.8 (CRITICAL). IBM webMethods Integration (on prem) 10.15, 10.11 could allow an unauthenticated remote attacker to execute arbitrary code on the system due to the deserialization of untrusted data.

How severe is CVE-2026-12118?

CVE-2026-12118 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-12118?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.