CVE-2024-21182 Oracle WebLogic Server: software flaw
In plain words: A mistake in the software that attackers have found a way to abuse. Depends on the product — see the description and the vendor advisory.
Confirmed exploited by CISA on · US federal patch deadline Jun 4, 2026
What to do
- Install Oracle's security update for WebLogic Server. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- Oracle WebLogic Server Unspecified Vulnerability
- Product
- Oracle WebLogic Server
- CISA description
- Oracle WebLogic contains an unspecified vulnerability that could allow an unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data.
- Type of flaw
- Software flaw
- Confirmed exploited
- Jun 1, 2026
- US federal patch deadline
- Jun 4, 2026
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Answering about CVE-2024-21182 ·
Questions about CVE-2024-21182
Is CVE-2024-21182 being exploited?
Yes. CISA added CVE-2024-21182 to its Known Exploited Vulnerabilities catalog on Jun 1, 2026, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2024-21182?
Install Oracle's security update for WebLogic Server. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2024-21182?
Only if you use Oracle WebLogic Server. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.