CVE-2011-3556

NONECVSS 0.09.0▲
EchelonGraph scoreLOW confidence

Score elevated to 9.0 because EPSS predicts 87% probability of exploitation within the next 30 days (top 0.5% of all CVEs). Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss
Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 76%
CISA-KEV: Not listedEPSS: 76%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7, 6 Update 27 and earlier, 5.0 Update 31 and earlier, 1.4.2_33 and earlier, and JRockit R28.1.4 and earlier allows remote attackers to affect confidentiality, integrity, and availability, related to RMI, a different vulnerability than CVE-2011-3557.

CVSS v3
—
EG Score
9.0(low)
EPSS
99.5%
KEV
Not listed

Published

October 19, 2011

Last Modified

April 29, 2026

References (48)

Vendor Advisories for CVE-2011-3556(7)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuopenjdk-6-jre-lib (6b23~pre11-0ubuntu1.11.10) @ oneiric2026-05-29ubuntu
redhatjava-1.6.0-ibm-1:1.6.0.14.0-1jpp.1.el5_92013-10-23redhat
redhatjava-1.4.2-ibm-sap-0:1.4.2.13.11.sap-1jpp.1.el52012-02-29redhat
redhatjava-1.6.0-ibm-1:1.6.0.10.0-1jpp.2.el52012-01-18redhat
redhatjava-1.4.2-ibm-0:1.4.2.13.11-1jpp.1.el52012-01-09redhat
redhatjava-1.5.0-ibm-1:1.5.0.13.0-1jpp.1.el52011-11-24redhat
redhatjava-1.6.0-sun-1:1.6.0.29-1jpp.1.el52011-10-19redhat
redhatjava-1.6.0-openjdk-1:1.6.0.0-1.40.1.9.10.el6_12011-10-18redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 28× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:23 UTCEPSS rescore
  2. 2026-07-05 02:26 UTCEPSS rescore
  3. 2026-07-02 14:01 UTCEPSS rescore
  4. 2026-06-30 23:19 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-29 14:02 UTCEPSS rescore
  7. 2026-06-28 04:53 UTCEPSS rescore
  8. 2026-06-28 04:52 UTCEPSS rescore
  9. 2026-06-25 13:46 UTCEPSS rescore
  10. 2026-06-24 14:02 UTCEPSS rescore
  11. 2026-06-24 14:02 UTCEPSS rescore
  12. 2026-06-23 21:30 UTCEPSS rescore
  13. 2026-06-23 21:30 UTCEPSS rescore
  14. 2026-06-22 14:22 UTCEPSS rescore
  15. 2026-06-22 14:22 UTCEPSS rescore
  16. 2026-06-21 01:56 UTCEPSS rescore
  17. 2026-06-21 01:56 UTCEPSS rescore
  18. 2026-06-18 17:49 UTCEPSS rescore
  19. 2026-06-18 17:49 UTCEPSS rescore
  20. 2026-06-16 17:49 UTCEPSS rescore
  21. 2026-06-15 17:44 UTCEPSS rescore
  22. 2026-06-13 22:57 UTCEPSS rescore
  23. 2026-06-13 22:57 UTCEPSS rescore
  24. 2026-06-12 23:08 UTCEPSS rescore
  25. 2026-06-10 22:14 UTCEPSS rescore
Show 27 more
  1. 2026-06-10 13:17 UTCEPSS rescore
  2. 2026-06-08 14:14 UTCEPSS rescore
  3. 2026-06-08 14:14 UTCEPSS rescore
  4. 2026-06-07 15:22 UTCEPSS rescore
  5. 2026-06-07 15:22 UTCEPSS rescore
  6. 2026-06-05 22:44 UTCEPSS rescore
  7. 2026-05-31 22:28 UTCEPSS rescore
  8. 2026-05-31 22:28 UTCEPSS rescore
  9. 2026-05-29 06:29 UTCEG score recompute
  10. 2026-05-29 06:29 UTCVendor advisory
  11. 2026-05-29 06:29 UTCGHSA enrichment
  12. 2026-05-28 13:42 UTCEPSS rescore
  13. 2026-05-28 13:42 UTCEPSS rescore
  14. 2026-05-28 13:42 UTCEPSS rescore
  15. 2026-05-27 13:38 UTCEPSS rescore
  16. 2026-05-27 13:38 UTCEPSS rescore
  17. 2026-05-22 21:15 UTCEPSS rescore
  18. 2026-05-22 21:15 UTCEPSS rescore
  19. 2026-05-22 21:15 UTCEPSS rescore
  20. 2026-05-20 22:37 UTCEPSS rescore
  21. 2026-05-20 22:37 UTCEPSS rescore
  22. 2026-05-20 22:37 UTCEPSS rescore
  23. 2026-05-20 11:21 UTCEPSS rescore
  24. 2026-05-20 11:21 UTCEPSS rescore
  25. 2026-05-20 11:21 UTCEPSS rescore
  26. 2026-05-18 21:29 UTCEPSS rescore
  27. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 Metasploit modules) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitauxiliary/scanner/misc/java_rmi_server✓ verified
    First seen Oct 15, 2011

    Java RMI Server Insecure Endpoint Code Execution Scanner

    Open source ↗
  • Metasploitexploit/multi/misc/java_rmi_server✓ verified
    First seen Oct 15, 2011

    Java RMI Server Insecure Default Configuration Java Code Execution

    Open source ↗
  • Exploit-DBEDB-17535✓ verified
    First seen Jul 15, 2011

    Java RMI - Server Insecure Default Configuration Java Code Execution (Metasploit)

    Open source ↗

Frequently asked(4)

What is CVE-2011-3556?
CVE-2011-3556 is a none vulnerability published on October 19, 2011. Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7, 6 Update 27 and earlier, 5.0 Update 31 and earlier, 1.4.2_33 and earlier, and JRockit R28.1.4 and earlier allows remote attackers to affect confidentiality, integrity, and availability, related to…
When was CVE-2011-3556 disclosed?
CVE-2011-3556 was first published in the National Vulnerability Database on October 19, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-3556 actively exploited?
CVE-2011-3556 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-3556?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-3556, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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