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Fencer Vulns
high 7.5

CVE-2009-3881 json

Sun Java SE 5.0 before Update 22 and 6 before Update 17, and OpenJDK, does not prevent the existence of children of a resurrected ClassLoad…

published 2009-11-09 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3852

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

Sun Java SE 5.0 before Update 22 and 6 before Update 17, and OpenJDK, does not prevent the existence of children of a resurrected ClassLoader, which allows remote attackers to gain privileges via unspecified vectors, related to an "information leak vulnerability," aka Bug Id 6636650.

Patch / fix

  • oracle java_se 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • oracle jdk 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • oracle jre 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • sun java 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • sun java_se 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • sun jdk 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • sun jre 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • oracle openjdk 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • sun openjdk 1.5.0_22, 1.6.0_17, 5.0.22, 6.0.17
  • java-1.5.0-sun RHEL 4 EXTRAS, network satellite 5.1 1.5.0.22-1jpp.1.el4
  • java-1.6.0-openjdk RHEL 5 1:1.6.0.0-1.7.b09.el5
  • java-1.6.0-openjdk-src RHEL 5 1:1.6.0.0-1.7.b09.el5
  • java-1.6.0-openjdk-demo RHEL 5 1:1.6.0.0-1.7.b09.el5
  • java-1.6.0-openjdk-javadoc RHEL 5 1:1.6.0.0-1.7.b09.el5
  • java-1.5.0-sun RHEL 5 EXTRAS 1.5.0.22-1jpp.1.el5
  • java-1.5.0-sun-src RHEL 4 EXTRAS 1.5.0.22-1jpp.1.el4
  • java-1.5.0-sun-src RHEL 5 EXTRAS 1.5.0.22-1jpp.1.el5

red hat advisories RHSA-2009:1662RHSA-2009:1584RHSA-2009:1571RHSA-2009:1560

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-3881 updated cvss 6.8

OpenJDK resurrected classloaders can still have children (6636650)

  • Red Hat Desktop version 4 Extras java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-src 1.5.0.22-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-demo 1.5.0.22-1jpp.1.el4, java-1.5.0-sun-jdbc 1.5.0.22-1jpp.1.el4, +4 more
    fixed: vendor fix RHSA-2009:1571
  • Red Hat Enterprise Linux (v. 5 server) java-1.6.0-openjdk 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-src 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-demo 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-javadoc 1.6.0.0-1.7.b09.el5
    fixed: vendor fix RHSA-2009:1584
  • Red Hat Enterprise Linux AS version 4 Extras java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-src 1.5.0.22-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-demo 1.5.0.22-1jpp.1.el4, java-1.5.0-sun-jdbc 1.5.0.22-1jpp.1.el4, +4 more
    fixed: vendor fix RHSA-2009:1571
  • Red Hat Enterprise Linux Desktop (v. 5 client) java-1.6.0-openjdk 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-src 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-demo 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-javadoc 1.6.0.0-1.7.b09.el5
    fixed: vendor fix RHSA-2009:1584
  • Red Hat Enterprise Linux Desktop Supplementary (v. 5) java-1.5.0-sun 1.5.0.22-1jpp.1.el5, java-1.6.0-sun 1.6.0.17-1jpp.2.el5, java-1.5.0-sun-src 1.5.0.22-1jpp.1.el5, java-1.6.0-sun-src 1.6.0.17-1jpp.2.el5, java-1.5.0-sun-demo 1.5.0.22-1jpp.1.el5, java-1.5.0-sun-jdbc 1.5.0.22-1jpp.1.el5, +4 more Red Hat Enterprise Linux ES version 4 Extras java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-src 1.5.0.22-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-demo 1.5.0.22-1jpp.1.el4, java-1.5.0-sun-jdbc 1.5.0.22-1jpp.1.el4, +4 more Red Hat Enterprise Linux Server Supplementary (v. 5) java-1.5.0-sun 1.5.0.22-1jpp.1.el5, java-1.6.0-sun 1.6.0.17-1jpp.2.el5, java-1.5.0-sun-src 1.5.0.22-1jpp.1.el5, java-1.6.0-sun-src 1.6.0.17-1jpp.2.el5, java-1.5.0-sun-demo 1.5.0.22-1jpp.1.el5, java-1.5.0-sun-jdbc 1.5.0.22-1jpp.1.el5, +4 more Red Hat Enterprise Linux WS version 4 Extras java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-src 1.5.0.22-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.17-1jpp.1.el4, java-1.5.0-sun-demo 1.5.0.22-1jpp.1.el4, java-1.5.0-sun-jdbc 1.5.0.22-1jpp.1.el4, +4 more
    fixed: vendor fix RHSA-2009:1571
  • Red Hat Satellite 5.1 (RHEL v.4 AS) java-1.5.0-sun 1.5.0.22-1jpp.1.el4
    fixed: vendor fix RHSA-2009:1662

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.67% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Fix historical java records.