CVE-2026-16702 Null dereference in Db2
A remote authenticated attacker can cause a denial of service in IBM Db2 via a null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16702?
CVE-2026-16702 is a medium-severity vulnerability in IBM Db2, published on 14 Sep 2026. Any signed-in user can exploit it over the 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 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereference.
Weakness: CWE-476
Which versions are affected by CVE-2026-16702?
How do I fix CVE-2026-16702?
No fix has been published for CVE-2026-16702 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16702 being exploited?
There is no known exploitation of CVE-2026-16702 in the wild and no public exploit code.
Sources
Also known as GHSA-4hwq-345h-4p3j.