CVE-2026-10534 IBM® Db2® is vulnerable to buffer overflow in the IXF IMPORT parser

What is CVE-2026-10534?

CVE-2026-10534 is a high-severity memory corruption vulnerability in Ibm Db2, published on 12 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to buffer overflow in the IXF IMPORT parser.

Weakness: CWE-121

Which versions are affected by CVE-2026-10534?

It affects 1 product.

Products include Ibm Db2.

How do I fix CVE-2026-10534?

No fix has been published for CVE-2026-10534 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-10534 being exploited?

There is no known exploitation of CVE-2026-10534 in the wild and no public exploit code.

Other vulnerabilities in Ibm Db2

• CVE-2012-1797 IBM DB2 9.5 uses world-writable permissions for nodes.reg, which has unspecified impact and attack vectors. Critical 10.0
• CVE-2010-3731 Memory corruption in n/a Critical 10.0
• CVE-2010-3193 Other in n/a Critical 10.0
• CVE-2009-4335 Other in n/a Critical 10.0
• CVE-2009-3473 Missing authorization in n/a Critical 10.0

All Ibm Db2 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-g6q7-fjqm-mw94.