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CVE-2009-3864

28
FAUCET Score

CVE-2009-3864 describes a vulnerability in the Java Update functionality of Sun Java SE JDK and JRE versions 5.0 before Update 22 and 6 before Update 17. When running on a non-English version of Windows, the update mechanism fails to retrieve new JRE versions, leaving users susceptible to known vulnerabilities in outdated software. This issue carries a CVSS score of 7.5, indicating a high severity with network-based attacks possible without authentication, leading to potential compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:1.5.0:update1:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:1.5.0:update10:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:1.5.0:update11:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:1.5.0:update11_b03:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
22.48%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.2248 is in the 96th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-3864Important

java-1.6.0-sun: Updates availability notification system failure (6869694)

Nov 4, 2009

References

java.sun.com / javase/6/webnotes/6u17.html
lists.opensuse.org / opensuse-security-announce/2009-11/msg00010.html
secunia.com / advisories/37231
Vendor Advisory
secunia.com / advisories/37239
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6753
sunsolve.sun.com / search/document.do
PatchVendor Advisory
securityfocus.com / bid/36881
Patch
vupen.com / english/advisories/2009/3131
PatchVendor Advisory