CVE-2026-7771 Denial of service in Db2
Attackers can cause a denial of service in IBM Db2 by submitting specially crafted statements with subqueries that trigger a trap during compilation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-7771?
CVE-2026-7771 is a medium-severity denial of service vulnerability in Ibm Db2, published on 17 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a trap when compiling a specially crafted statements containing subqueries could lead to a denial of service.
Weakness: CWE-835
Which versions are affected by CVE-2026-7771?
It affects 1 product.
Products include Ibm Db2.
How do I fix CVE-2026-7771?
No fix has been published for CVE-2026-7771 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-7771 being exploited?
There is no known exploitation of CVE-2026-7771 in the wild and no public exploit code.
Other vulnerabilities in Ibm Db2
Sources
Also known as GHSA-g7p2-92pc-3r27.