CVE-2026-16340: CWE-787 Out-of-bounds Write in IBM DataPower Gateway 10.6CD
Description
IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to execute arbitrary code due to an out-of-bounds write in the RFC2047 encoded-word parser.
CVSS v3.1
Score 9.8critical
Affected software
IBM
DataPower Gateway 10.6CD
IBM
DataPower Gateway 10.6.0
IBM
DataPower Gateway 11.0.0
IBM
DataPower Gateway 10.5.0
cpe:2.3:a:ibm:datapower_gateway_106cd:10.6.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:datapower_gateway_106cd:10.6.6:*:*:*:*:*:*:*cpe:2.3:a:ibm:datapower_gateway_1060:10.6.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:datapower_gateway_1060:10.6.0.10:*:*:*:*:*:*:*cpe:2.3:a:ibm:datapower_gateway_1100:11.0.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:datapower_gateway_1100:11.0.0.2:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-16340) affects multiple versions of IBM DataPower Gateway. It is caused by an out-of-bounds write condition in the RFC2047 encoded-word parser component. Exploitation could lead to remote code execution by an unauthenticated attacker. The CVSS v3.1 base score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed. The vulnerability impacts confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows a remote attacker to execute arbitrary code on affected IBM DataPower Gateway devices, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
No explicit patch or remediation information is provided in the input data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected devices and monitor for suspicious activity related to RFC2047 encoded-word parsing.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-20T19:40:57.359Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac798672cdf04f656192b96
Added to database: 10/08/2026, 13:19:35 UTC
Last enriched: 10/08/2026, 13:33:15 UTC
Last updated: 10/08/2026, 14:04:08 UTC
Views: 7
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