CVE-2018-2940

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Libraries). Supported versions that are affected are Java SE: 6u191, 7u181, 8u172 and 10.0.1; Java SE Embedded: 8u171. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE, Java SE Embedded accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.0 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N).

Published: 2018-07-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-2940 is rated Low Risk (32.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-2940

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-13 0.27% 0.22% -0.05%
2 2026-01-04 0.16% 0.27% +0.11%
3 2025-12-28 — 0.16% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-2940

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-2940

OS Trackers for CVE-2018-2940

vendor priority summary link
alpine medium CVE-2018-2940: 1 source package rows (openjdk8); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2018-2940
debian unimportant CVE-2018-2940 unimportant priority: Debian including 1 source packages (openjdk-8), 1 status rows across 1 suites (sid): resolved 1. https://security-tracker.debian.org/tracker/CVE-2018-2940
redhat medium — https://access.redhat.com/security/cve/CVE-2018-2940
suse medium CVE-2018-2940 severity moderate: SUSE including 400 source package names (10.1.33-openjdk11-59.4:java-11-openjdk-11.0.0.0~24-3.3.1, 10.1.33-openjdk11-59.4:java-11-openjdk-headless-11.0.0.0~24-3.3.1, …), 1135 product×package rows across 157 product lines (Container bci/openjdk, Container bci/openjdk-devel, … (157 product lines)): Fixed 778, Known Affected 231, Known Not Affected 126. https://www.suse.com/security/cve/CVE-2018-2940/
ubuntu medium CVE-2018-2940 medium priority: Ubuntu including 5 source packages (openjdk-6, openjdk-7, openjdk-8, openjdk-9, openjdk-lts), 25 status rows across 5 suites (artful, bionic, trusty, upstream, xenial): DNE 14, not-affected 9, ignored 2. https://ubuntu.com/security/CVE-2018-2940

Affected software / configurations for CVE-2018-2940

Vendor Product Version Raw CPE
oracle jdk 1.6.0 cpe:2.3:a:oracle:jdk:1.6.0:update191:*:*:*:*:*:*
oracle jdk 1.7.0 cpe:2.3:a:oracle:jdk:1.7.0:update181:*:*:*:*:*:*
oracle jdk 1.8.0 cpe:2.3:a:oracle:jdk:1.8.0:update172:*:*:*:*:*:*
oracle jdk 10.0.1 cpe:2.3:a:oracle:jdk:10.0.1:*:*:*:*:*:*:*
oracle jre 1.6.0 cpe:2.3:a:oracle:jre:1.6.0:update191:*:*:*:*:*:*
oracle jre 1.7.0 cpe:2.3:a:oracle:jre:1.7.0:update181:*:*:*:*:*:*
oracle jre 1.8.0 cpe:2.3:a:oracle:jre:1.8.0:update172:*:*:*:*:*:*
oracle jre 10.0.1 cpe:2.3:a:oracle:jre:10.0.1:*:*:*:*:*:*:*
hp xp7_command_view — cpe:2.3:a:hp:xp7_command_view:*:*:*:*:advanced:*:*:*
redhat satellite 5.6 cpe:2.3:a:redhat:satellite:5.6:*:*:*:*:*:*:*
redhat satellite 5.7 cpe:2.3:a:redhat:satellite:5.7:*:*:*:*:*:*:*
redhat satellite 5.8 cpe:2.3:a:redhat:satellite:5.8:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
netapp cloud_backup — cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netapp e-series_santricity_os_controller >= 11.0, <= 11.70.1 cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*
netapp e-series_santricity_storage_manager — cpe:2.3:a:netapp:e-series_santricity_storage_manager:-:*:*:*:*:*:*:*
netapp oncommand_insight — cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
netapp oncommand_unified_manager — cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:*:*:*
netapp oncommand_workflow_automation — cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
netapp plug-in_for_symantec_netbackup — cpe:2.3:a:netapp:plug-in_for_symantec_netbackup:-:*:*:*:*:*:*:*
netapp snapmanager — cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:oracle:*:*
netapp snapmanager — cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:sap:*:*
netapp steelstore_cloud_integrated_storage — cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
netapp storage_replication_adapter_for_clustered_data_ontap >= 9.7 cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap:*:*:*:*:*:vmware_vsphere:*:*
netapp vasa_provider_for_clustered_data_ontap >= 9.7 cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:*:*:*:*:*:*:*:*
netapp virtual_storage_console >= 9.7 cpe:2.3:a:netapp:virtual_storage_console:*:*:*:*:*:vmware_vsphere:*:*

References for CVE-2018-2940

URL Tags
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html Patch Vendor Advisory
http://www.securityfocus.com/bid/104768 Broken Link
http://www.securitytracker.com/id/1041302 Broken Link
https://access.redhat.com/errata/RHSA-2018:2253 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2254 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2255 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2256 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2568 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2569 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2575 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2576 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2712 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2713 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3007 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3008 Third Party Advisory
https://security.netapp.com/advisory/ntap-20180726-0001/ Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03882en_us Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03928en_us Third Party Advisory
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