CVE-2019-25653 Navicat for Oracle 12.1.15 Password Field Denial of Service
Local attackers can crash Navicat for Oracle by entering an excessively long string in the password field during connection configuration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-25653?
CVE-2019-25653 is a medium-severity denial of service vulnerability in Navicat for Oracle, published on 30 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Navicat for Oracle 12.1.15 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the password field. Attackers can paste a buffer of 550 repeated characters into the password parameter during Oracle connection configuration to trigger an application crash.
Weakness: CWE-620
Which versions are affected by CVE-2019-25653?
It affects 1 product.
Products include Navicat Navicat for Oracle.
How do I fix CVE-2019-25653?
No fix has been published for CVE-2019-25653 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-2019-25653 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25653 exists.
Sources
Also known as GHSA-83jv-37p5-gc2r.