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CVE-2009-2724

25
FAUCET Score

CVE-2009-2724 describes a race condition within the java.lang package of Sun Java SE 5.0 prior to Update 20, specifically impacting reflection checks. This vulnerability carries a critical CVSS score of 9.3, indicating a high potential for complete compromise of confidentiality, integrity, and availability, achievable remotely with medium attack complexity. Despite its severity, there is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0CPE matchmatch criteria
cpe:2.3:a:sun:java_se:*:19:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.58%
Probability of exploitation in next 30 days
EPSS Percentile
73.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0158 is in the 30th percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.5.0-sun-0:1.5.0.20-1jpp.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.5.0-sun-0:1.5.0.20-1jpp.1.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-2724Moderate

JDK race condition vulnerability reflection checks

Aug 11, 2009

References

java.sun.com / j2se/1.5.0/ReleaseNotes.html
PatchVendor Advisory
secunia.com / advisories/37386
secunia.com / advisories/37460
security.gentoo.org / glsa/glsa-200911-02.xml
sunsolve.sun.com / search/document.do
PatchVendor Advisory
securityfocus.com / archive/1/507985/100/0/threaded
vmware.com / security/advisories/VMSA-2009-0016.html
vupen.com / english/advisories/2009/3316