CVE-2021-39041 Denial of service in QRadar SIEM
Attackers can cause partial denial of service in IBM QRadar SIEM by preventing protocols from listening on specified ports.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-39041?
CVE-2021-39041 is a low-severity denial of service vulnerability in Ibm Qradar Security Information and Event Manager, published on 12 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM QRadar SIEM 7.3, 7.4, and 7.5 may be vulnerable to partial denial of service attack, resulting in some protocols not listening to specified ports. IBM X-Force ID: 214028.
Which versions are affected by CVE-2021-39041?
It affects 1 product.
Products include Ibm Qradar Security Information and Event Manager.
How do I fix CVE-2021-39041?
No fix has been published for CVE-2021-39041 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-2021-39041 being exploited?
There is no known exploitation of CVE-2021-39041 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-96h4-295q-6953.