Arbitrary Code Execution Vulnerability in IBM DataPower Gateway
CVE-2026-16340

9.8CRITICAL

Key Information:

Vendor

IBM
Status
Datapower Gateway 10.6cd
Datapower Gateway 10.6.0
Datapower Gateway 11.0.0
Datapower Gateway 10.5.0
Vendor
CVE Published:
8 October 2026

What is CVE-2026-16340?

A vulnerability in the IBM DataPower Gateway allows a remote attacker to execute arbitrary code due to an out-of-bounds write in the RFC2047 encoded-word parser. This issue affects multiple versions of the product, making it critical for users to apply all relevant patches to mitigate the risk of exploitation.

Affected Version(s)

DataPower Gateway 10.5.0 10.5.0.0 <= 10.5.0.22

DataPower Gateway 10.6.0 10.6.0.0 <= 10.6.0.10

DataPower Gateway 10.6CD 10.6.1 <= 10.6.6

References

https://www.ibm.com/support/pages/node/7289775
vendor-advisorypatch

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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