CVE-2008-5355

CVE-2008-5355 is a critical-severity vulnerability in Sun Jdk with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

• Severity: Critical (CVSS 2.0 base score 10.0)
• EPSS exploit prediction: 8% (94th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-287
• Affected product: Sun Jdk
• Published: 2008-12-05
• Last modified: 2026-06-16

Description

The "Java Update" feature for Java Runtime Environment (JRE) for Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier does not verify the signature of the JRE that is downloaded, which allows remote attackers to execute arbitrary code via DNS man-in-the-middle attacks.

Frequently asked questions

What is CVE-2008-5355?

The "Java Update" feature for Java Runtime Environment (JRE) for Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier does not verify the signature of the JRE that is downloaded, which allows remote attackers to execute arbitrary code via DNS man-in-the-middle attacks.

How severe is CVE-2008-5355?

CVE-2008-5355 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2008-5355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-5355?

CVE-2008-5355 primarily affects Sun Jdk. In total, 91 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-5355?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2008-5355 published?

CVE-2008-5355 was published on 2008-12-05 and last updated on 2026-06-16.

References

• http://osvdb.org/50498
• http://secunia.com/advisories/37386
• http://security.gentoo.org/glsa/glsa-200911-02.xml
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-244989-1
• http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&DocumentOID=829914&poid=
• http://www.securitytracker.com/id?1021315
• http://www.us-cert.gov/cas/techalerts/TA08-340A.html
• http://www.vupen.com/english/advisories/2008/3339
• http://www116.nortel.com/pub/repository/CLARIFY/DOCUMENT/2009/03/024431-01.pdf
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5664

Affected products (91)

• cpe:2.3:a:sun:jdk:*:update_16:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:*:update_10:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_1:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_10:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_11:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_12:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_13:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_14:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_15:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_2:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_3:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_4:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_5:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_6:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_7:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_8:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_9:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_1:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_2:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_3:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_4:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_5:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_6:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_7:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_8:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_9:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:*:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:*:update_16:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:*:update_10:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_1:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_2:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_3:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_4:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_5:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_6:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_7:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_8:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_9:*:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_10:*:*:*:*:*:*:*

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