IBM DataPower Gateway: Out-of-bounds write causes memory corruption
Summary
IBM DataPower Gateway versions 10.5.0.0 to 10.5.0.22, 10.6.0.0 to 10.6.0.10, 10.6.1 to 10.6.6 and 11.0.0.0 to 11.0.0.2 contain an out-of-bounds write (CWE-787). A remote attacker can cause memory corruption in the gateway without authentication or user interaction. The CVSS 3.1 vector rates the main impact as availability (high), with low confidentiality and integrity impact. No public exploitation has been reported in the research.
Affected
- IBM DataPower Gateway 10.5.0.0 through 10.5.0.22
- IBM DataPower Gateway 10.6.0.0 through 10.6.0.10
- IBM DataPower Gateway 10.6.1 through 10.6.6 (10.6CD)
- IBM DataPower Gateway 11.0.0.0 through 11.0.0.2
Fixed in
- 10.5.0.23 for the 10.5.0 line
- 10.6.0.11 for the 10.6.0 line
- 11.0.0.3 for the 11.0.0 line and, per the CVE record, the 10.6CD line (verify in the IBM bulletin)
Workaround
Unknown. The vendor documents no workaround; patching is the fix. Until patched, restrict management and gateway access to trusted networks.
Exploitation
- Not listed in CISA KEV (per research notes).
- CISA SSVC: exploitation none, automatable yes, technical impact partial.
- No public proof-of-concept found in the research; re-check before relying on this.
Our recommendation
- Patch to the fixed versions as soon as possible, together with the other DataPower bulletin CVEs.
- Prioritise internet-facing gateways.
- Restrict access to management and gateway interfaces to trusted networks.
- Monitor for unexpected restarts, crashes or failovers.
- Confirm the fixed build for your branch in IBM bulletin 7289775.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- IBM Security Bulletin: IBM DataPower Gateway affected by multiple CVEs www.ibm.com
- Vulners: CVE-2026-16163 (Rapid7) vulners.com
- VulDB: CVE-2026-16163 vuldb.com
- Strix: CVE-2026-16163 www.strix.ai
- Threatint: CVE-2026-16163 cve.threatint.com
- SecurityOnline: IBM DataPower Gateway vulnerabilities securityonline.info
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 09:05.
Original description (NVD)
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 cause memory corruption due to an out-of-bounds write.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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