CVE-2020-4511 Denial of service in QRadar SIEM
An authenticated user can cause a denial of service in the qflow process by sending a malformed sflow command.
- 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-2020-4511?
CVE-2020-4511 is a medium-severity denial of service vulnerability in Ibm Qradar Security Information and Event Manager, published on 14 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM QRadar SIEM 7.3 and 7.4 could allow an authenticated user to cause a denial of service of the qflow process by sending a malformed sflow command. IBM X-Force ID: 182366.
Which versions are affected by CVE-2020-4511?
It affects 1 product.
Products include Ibm Qradar Security Information and Event Manager.
How do I fix CVE-2020-4511?
No fix has been published for CVE-2020-4511 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-2020-4511 being exploited?
There is no known exploitation of CVE-2020-4511 in the wild and no public exploit code.
Other vulnerabilities in Ibm Qradar Security Information and Event Manager
- CVE-2019-4210 Auth bypass in QRadar SIEM
- CVE-2014-3062 Code injection in n/a
- CVE-2025-33117 IBM QRadar SIEM command execution
- CVE-2020-4512 Command injection in QRadar SIEM
- CVE-2015-2011 Command injection in n/a
All Ibm Qradar Security Information and Event Manager vulnerabilities
Sources
Also known as GHSA-v88m-pxx4-rpwh.