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CVE-2008-5351

21
FAUCET Score

CVE-2008-5351 is a vulnerability in Sun JDK, JRE, and SDK versions 6 Update 10 and earlier, 5.0 Update 16 and earlier, and 1.4.2_18 and earlier. It allows the Java Runtime Environment to accept non-"shortest" form UTF-8 encodings, enabling attackers to bypass security mechanisms in other applications. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:*:update_16:*:*:*:*:*:*
<= 6CPE matchmatch criteria
cpe:2.3:a:sun:jdk:*:update_10:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:5.0:update_1:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:5.0:update_10:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:sun:jdk:5.0:update_11:*:*:*:*:*:*

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
3.43%
Probability of exploitation in next 30 days
EPSS Percentile
87.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0343 is in the 78th percentile among its peer group of 51,551 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (12)

redhatpatch availablevia redhat_api
Product: Extras for RHEL 3Fixed in: java-1.4.2-ibm-0:1.4.2.13-1jpp.1.el3
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.6.0-sun-1:1.6.0.11-1jpp.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.5.0-sun-0:1.5.0.17-1jpp.2.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.5.0-ibm-1:1.5.0.9-1jpp.4.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.6.0-ibm-1:1.6.0.4-1jpp.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.4.2-ibm-0:1.4.2.13-1jpp.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Satellite Server v 5.2Fixed in: java-1.5.0-ibm-1:1.5.0.9-1jpp.2.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.6.0-sun-1:1.6.0.11-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.5.0-sun-0:1.5.0.17-1jpp.2.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.5.0-ibm-1:1.5.0.9-1jpp.2.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.6.0-ibm-1:1.6.0.4-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.4.2-ibm-0:1.4.2.13-1jpp.1.el5
View patch

Vendor Advisories (1)

redhatCVE-2008-5351Important

OpenJDK UTF-8 decoder accepts non-shortest form sequences (4486841)

Dec 4, 2008

References

lists.opensuse.org / opensuse-security-announce/2009-01/msg00009.html
lists.opensuse.org / opensuse-security-announce/2009-03/msg00001.html
lists.opensuse.org / opensuse-security-announce/2009-04/msg00004.html
lists.opensuse.org / opensuse-security-announce/2009-05/msg00000.html
marc.info
marc.info
osvdb.org / 50502
rhn.redhat.com / errata/RHSA-2008-1018.html
rhn.redhat.com / errata/RHSA-2008-1025.html
secunia.com / advisories/32991
secunia.com / advisories/33015
secunia.com / advisories/33709
secunia.com / advisories/33710
secunia.com / advisories/34233
secunia.com / advisories/34259
secunia.com / advisories/34447
secunia.com / advisories/34605
secunia.com / advisories/34889
secunia.com / advisories/34972
secunia.com / advisories/35065
secunia.com / advisories/37386
secunia.com / advisories/38539
security.gentoo.org / glsa/glsa-200911-02.xml
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6212
rhn.redhat.com / errata/RHSA-2009-0466.html
sunsolve.sun.com / search/document.do
PatchVendor Advisory
support.avaya.com / elmodocs2/security/ASA-2009-012.htm
support.nortel.com / go/main.jsp
www116.nortel.com / pub/repository/CLARIFY/DOCUMENT/2009/03/024431-01.pdf
redhat.com / support/errata/RHSA-2009-0016.html
redhat.com / support/errata/RHSA-2009-0369.html
redhat.com / support/errata/RHSA-2009-0445.html
securityfocus.com / bid/32608
securitytracker.com / id
us-cert.gov / cas/techalerts/TA08-340A.html
US Government Resource
vupen.com / english/advisories/2008/3339
vupen.com / english/advisories/2009/0672