CVE-2020-4271 Deserialization in QRadar
An authenticated attacker can execute arbitrary commands with lower privileges via deserialization in IBM QRadar.
- 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-2020-4271?
CVE-2020-4271 is a medium-severity unsafe deserialization vulnerability in Ibm Qradar Security Information and Event Manager, published on 15 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM QRadar 7.3.0 to 7.3.3 Patch 2 could allow an authenticated user to send a specially crafted command which would be executed as a lower privileged user. IBM X-ForceID: 175897.
Weakness: CWE-502
Which versions are affected by CVE-2020-4271?
It affects 1 product.
Products include Ibm Qradar Security Information and Event Manager.
How do I fix CVE-2020-4271?
No fix has been published for CVE-2020-4271 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-4271 being exploited?
There is no known exploitation of CVE-2020-4271 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-6m87-rx2w-j7jv.