CVE-2026-16340
CriticalCVSS 9.8Summary
IBM DataPower Gateway versions 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 contain an out-of-bounds write vulnerability in the RFC2047 encoded-word parser, which could allow a remote attacker to execute arbitrary code.
Risk Assessment
An attacker could remotely execute arbitrary code on the server, potentially leading to full system compromise, data confidentiality breach, and service disruption.
Recommendation
It is recommended to immediately update IBM DataPower Gateway to a patched version and restrict access to the system to trusted sources only.
Other vulnerabilities in IBM DataPower Gateway
See all- CVE-2026-14999High
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 bypass authentication by forging valid JSON Web Signatures due to improper verification of cryptographic signatures.
- CVE-2026-14905High
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 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
- CVE-2026-14888High
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.
- CVE-2026-14507High
IBM DataPower Gateway versions 11.0.0.0 through 11.0.0.2 contain a vulnerability caused by improper memory allocation during key derivation. A remote authenticated attacker can exploit this flaw to cause a denial of service.
- CVE-2026-14497High
IBM DataPower Gateway versions 10.5.0.0–10.5.0.22, 10.6.1–10.6.6, 10.6.0.0–10.6.0.10, and 11.0.0.0–11.0.0.2 contain a vulnerability due to improper verification of cryptographic signatures. A remote authenticated attacker can bypass security restrictions.
- CVE-2026-14496High
IBM DataPower Gateway versions 10.5.0.0–10.5.0.22, 10.6.1–10.6.6, 10.6.0.0–10.6.0.10, and 11.0.0.0–11.0.0.2 contain a heap-based buffer overflow. A remote attacker can exploit this flaw to cause a denial of service.
- CVE-2026-16167High
IBM DataPower Gateway versions 10.5.0.0–10.5.0.22, 10.6.1–10.6.6, 10.6.0.0–10.6.0.10, and 11.0.0.0–11.0.0.2 contain a vulnerability due to improper bounds checking. A remote attacker can cause a denial of service.
- CVE-2026-16165High
IBM DataPower Gateway versions 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 a denial of service due to a null pointer dereference.
- CVE-2026-16164High
IBM DataPower Gateway versions 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 a denial of service due to a buffer overflow.
- CVE-2026-16163High
IBM DataPower Gateway versions 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.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS