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CVE-2018-2603

22
FAUCET Score

CVE-2018-2603 is a vulnerability in the Libraries subcomponent of Oracle Java SE, Java SE Embedded, and JRockit, affecting versions 6u171, 7u161, 8u152, 9.0.1, 8u151, and R28.3.16 respectively. This easily exploitable flaw allows an unauthenticated attacker with network access to cause a partial denial of service (DoS) on affected Java installations, impacting both client and server deployments. The vulnerability can be triggered via sandboxed Java Web Start applications, applets, or by supplying data to specific APIs. Rated with a CVSS 3.0 Base Score of 5.3 (Medium), the attack vector is network-based with low attack complexity and no user interaction required. The primary impact is limited to availability, with no confidentiality or integrity impacts. There is currently no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
1.6.0CPE matchmatch criteria
cpe:2.3:a:oracle:jdk:1.6.0:update171:*:*:*:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:oracle:jdk:1.7.0:update161:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:oracle:jdk:1.8.0:update152:*:*:*:*:*:*
9.0.1CPE matchmatch criteria
cpe:2.3:a:oracle:jdk:9.0.1:*:*:*:*:*:*:*
1.6.0CPE matchmatch criteria
cpe:2.3:a:oracle:jre:1.6.0:update171:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.91%
Probability of exploitation in next 30 days
EPSS Percentile
93.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0691 is in the 91st percentile among its peer group of 23,701 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (19)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Oracle Java for Red Hat Enterprise Linux 6Fixed in: java-1.8.0-oracle-1:1.8.0.161-1jpp.1.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Oracle Java for Red Hat Enterprise Linux 6Fixed in: java-1.7.0-oracle-1:1.7.0.171-1jpp.1.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Oracle Java for Red Hat Enterprise Linux 6Fixed in: java-1.6.0-sun-1:1.6.0.181-1jpp.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Oracle Java for Red Hat Enterprise Linux 7Fixed in: java-1.8.0-oracle-1:1.8.0.161-1jpp.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Oracle Java for Red Hat Enterprise Linux 7Fixed in: java-1.7.0-oracle-1:1.7.0.171-1jpp.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Oracle Java for Red Hat Enterprise Linux 7Fixed in: java-1.6.0-sun-1:1.6.0.181-1jpp.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: java-1.8.0-openjdk-1:1.8.0.161-3.b14.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: java-1.7.0-openjdk-1:1.7.0.171-2.6.13.0.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: java-1.8.0-ibm-1:1.8.0.5.10-1jpp.1.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: java-1.7.1-ibm-1:1.7.1.4.20-1jpp.3.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: java-1.8.0-openjdk-1:1.8.0.161-0.b14.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: java-1.7.0-openjdk-1:1.7.0.171-2.6.13.0.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 SupplementaryFixed in: java-1.8.0-ibm-1:1.8.0.5.10-1jpp.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 SupplementaryFixed in: java-1.7.1-ibm-1:1.7.1.4.20-1jpp.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 5.6Fixed in: java-1.7.1-ibm-1:1.7.1.4.20-1jpp.3.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 5.7Fixed in: java-1.7.1-ibm-1:1.7.1.4.20-1jpp.3.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 5.8Fixed in: java-1.8.0-ibm-1:1.8.0.5.10-1jpp.1.el6_9
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: java-1.6.0-ibm

Vendor Advisories (1)

redhatCVE-2018-2603Moderate

OpenJDK: DerValue unbounded memory allocation (Libraries, 8182387)

Jan 16, 2018

References

access.redhat.com / errata/RHSA-2018:0095
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0099
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0100
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0115
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0349
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0351
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0352
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0458
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0521
Third Party Advisory
access.redhat.com / errata/RHSA-2018:1463
Third Party Advisory
access.redhat.com / errata/RHSA-2018:1812
Third Party Advisory
help.ecostruxureit.com / display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
Third Party Advisory
lists.debian.org / debian-lts-announce/2018/04/msg00003.html
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20180117-0001
Third Party Advisory
support.hpe.com / hpsc/doc/public/display
Third Party Advisory
usn.ubuntu.com / 3613-1
Third Party Advisory
usn.ubuntu.com / 3614-1
Third Party Advisory
debian.org / security/2018/dsa-4144
Third Party Advisory
debian.org / security/2018/dsa-4166
Third Party Advisory
oracle.com / technetwork/security-advisory/cpujan2018-3236628.html
PatchVendor Advisory
securityfocus.com / bid/102625
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1040203
Broken LinkThird Party AdvisoryVDB Entry