CVE-2013-3993 IBM InfoSphere BigInsights Invalid Input Vulnerability
Certain APIs within BigInsights can take invalid input that might allow attackers unauthorized access to read, write, modify, or delete data.
From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.
Should You Worry?
- CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 25 May 2022.
- CISA lists it as known to be used in ransomware campaigns.
- Rated Medium severity (CVSS 6.5, scored by CISA).
- It has been in the catalogue for 1,626 days. Systems still unpatched now have almost certainly been scanned for it.
What It Is
IBM InfoSphere BigInsights before 2.1.0.3 allows remote authenticated users to bypass intended file and directory restrictions, or access untrusted data or code, via crafted parameters in unspecified API calls.
What To Do Now
- 1
Find it
Search your asset inventory and external attack surface for IBM InfoSphere BigInsights. Include cloud images, appliances and anything a supplier runs for you.
Attack Surface Management - 2
Fix it
The impacted product is end-of-life and should be disconnected if still in use.
Vulnerability Management - 3
Hunt for compromise
If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.
Incident Response - 4
Prove it is fixed
Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.
Penetration Testing
Vendor Advisories
The Compliance Clock
General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.
Not Sure If You Are Exposed?
Our attack surface and vulnerability teams can check your internet-facing estate for CVE-2013-3993 and every other exploited flaw on the list.