CVE-2009-3877: n/a vulnerability

CVE-2009-3877: Unspecified vulnerability in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 1...

Unspecified vulnerability in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK and JRE 1.4.x before 1.4.2_24 allows remote attackers to cause a denial of service (memory consumption) via crafted HTTP headers, which are not properly parsed by the ASN.1 DER input stream parser, aka Bug Id 6864911.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 06:45 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-3877 is a Java vulnerability that can let a remote attacker force affected Java runtimes to consume memory and deny service. The available sources describe denial of service, not code execution or data theft. Risk is mainly to systems still running very old Sun Java SE, JDK, JRE, SDK, or vendor-packaged Java versions. Exposure is most likely in legacy applications, appliances, or servers using the listed Java versions or downstream vendor packages. Modern Java deployments should not be affected if they are on supported, updated runtimes. The bundle does not identify specific applications beyond Java runtime families and vendor advisories. Prioritize this where legacy Java remains internet-facing or supports business-critical services. It is not evidenced as active exploitation, but old Java runtimes create broader operational and security risk. Remediation should be handled through legacy asset cleanup and vendor patching. Mitigation focus: Inventory Java runtimes on servers, appliances, and bundled application stacks.; Upgrade affected Sun Java versions to the fixed releases or later.; Apply relevant OS vendor Java updates from Red Hat, Gentoo, Apple, SUSE, or HP..

Prepared: Jun 28, 2026, 18:15 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2009-3877 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 5, 2009, 16:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:7148CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:10469CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:12232CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:8330CVE reference · vdb-entry, signature

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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