IBM DataPower Gateway: Heap-based buffer overflow enables remote code execution
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 a heap-based buffer overflow (CWE-122). According to the CVE record, a remote attacker can exploit it without authentication to execute arbitrary code, which could give full control over the gateway. The CVSS base score is 9.8 (CRITICAL) in the CVE record.
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
- IBM DataPower Gateway 10.5.0: 10.5.0.23
- IBM DataPower Gateway 10.6.0: 10.6.0.11
- IBM DataPower Gateway 10.6CD (10.6.1 to 10.6.6): 11.0.0.3
- IBM DataPower Gateway 11.0.0: 11.0.0.3
(Fix mapping taken from the CVE record. Verify against the IBM advisory before deployment.)
Workaround
Unknown. No CVE-specific workaround from IBM has been identified. Patching is the primary remediation.
Exploitation
- CISA SSVC assessment: exploitation none, not automatable, total technical impact.
- No evidence of exploitation in the wild was found at the time of research.
- No public proof of concept was found.
- Recheck the CISA KEV catalogue, as the status may have changed.
Our recommendation
- Check whether any DataPower Gateway instance is in use and which version it runs.
- Apply the fixed version listed in the IBM advisory (node/7289775) as soon as possible.
- If patching is delayed, restrict management and gateway access to trusted networks only.
- Monitor the CISA KEV catalogue and IBM security bulletins for updates.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- IBM Security Bulletin (node/7289775) www.ibm.com
- IBM Security Bulletin: DataPower Gateway affected by multiple CVEs www.ibm.com
- VulDB entry CVE-2026-14888 vuldb.com
- Rapid7 via Vulners CVE-2026-14888 vulners.com
- HOL Guard CVE-2026-14888 hol.org
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 30 Oct 2026, 20:27.
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 execute arbitrary code due to a heap-based buffer overflow.
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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