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Exploited vulnerability · CISA KEV

Is CVE-2011-3544 exploited? Yes: in CISA KEV since 3 Mar 2022

Gociux · Oracle Java SE JDK and JRE · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2011-3544, Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Mar 2022, 3788 days after it was published. It affects Oracle Java SE JDK and JRE. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 3 Mar 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due24 Mar 2022BOD 22-01 deadline

What it is

An access control vulnerability exists in the Applet Rhino Script Engine component of Oracle's Java Runtime Environment allows an attacker to remotely execute arbitrary code.

VendorOracle (46 exploited CVEs in KEV)
ProductJava SE JDK and JRE
VulnerabilityOracle Java SE Runtime Environment (JRE) Arbitrary Code Execution Vulnerability
Weaknessnot specified
Published19 Oct 2011
Added to KEV3 Mar 2022
Reported by (CNA)oracle

What to do

  1. Check whether you run it. Look for Java SE JDK and JRE in your asset inventory, including appliances and cloud images. Stack check lists every exploited Oracle CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 19 Oct 2011.
  4. Get told next time. Email alerts when CISA adds a CVE for Oracle.

References

Questions

Is CVE-2011-3544 being exploited?

Yes. CISA added CVE-2011-3544 to the Known Exploited Vulnerabilities catalog on 3 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2011-3544 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2011-3544?

Apply updates per vendor instructions. Check Oracle's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Java SE JDK and JRE and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2022 · Oracle scorecard · act-now radar.

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