CVE-2018-2938 [Critical] | Security Vulnerability in Jdk

Vulnerability in the Java SE component of Oracle Java SE (subcomponent: Java DB). Supported versions that are affected are Java SE: 6u191, 7u181 and 8u172. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. While the vulnerability is in Java SE, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVE-2018-2938 addresses CVE-2018-1313. CVSS 3.0 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-11-21	0.76%	0.57%	-0.18%
2	2025-11-18	0.57%	0.76%	+0.18%
3	2025-10-18	—	0.57%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-11-21

0.76%

0.57%

-0.18%

2025-11-18

0.57%

0.76%

+0.18%

2025-10-18

—

0.57%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.0	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H` 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:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.2	6.0	[email protected]
6.8	2.0	MEDIUM	`AV:N/AC:M/Au:N/C:P/I:P/A:P` 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:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	8.6	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.0

3.1

CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H 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:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.2

6.0

[email protected]

6.8

2.0

MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P 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:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

8.6

6.4

[email protected]

OS Trackers for CVE-2018-2938

vendor	priority	summary	link
`alpine`	critical	CVE-2018-2938: 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-2018-2938
`debian`	unimportant	CVE-2018-2938 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-2018-2938
`redhat`	high	—	https://access.redhat.com/security/cve/CVE-2018-2938
`suse`	high	CVE-2018-2938 severity important: SUSE including 39 source package names (9.0.97-openjdk8-59.4:java-1_8_0-openjdk-1.8.0.181-3.10.1, 9.0.97-openjdk8-59.4:java-1_8_0-openjdk-headless-1.8.0.181-3.10.1, …), 215 product×package rows across 39 product lines (Container containers/apache-tomcat, Image tomcat_15_6, … (39 product lines)): Fixed 215.	https://www.suse.com/security/cve/CVE-2018-2938/
`ubuntu`	medium	CVE-2018-2938 medium priority: Ubuntu including 5 source packages (icedtea-web, openjdk-6, openjdk-7, openjdk-8, openjdk-9), 65 status rows across 13 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, trusty, upstream, xenial): DNE 36, not-affected 24, ignored 3, needs-triage 2.	https://ubuntu.com/security/CVE-2018-2938

Affected software / configurations for CVE-2018-2938

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	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::::::
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-2018-2938

URL	Tags
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html	Patch Vendor Advisory
http://www.securityfocus.com/bid/104774	Broken Link
http://www.securitytracker.com/id/1041302	Broken Link
https://security.netapp.com/advisory/ntap-20180726-0001/	Third Party Advisory

URL

CVE-2018-2938

Exploit prediction scoring system (EPSS) score for CVE-2018-2938

Common vulnerability scoring system (CVSS) metrics for CVE-2018-2938

Weakness enumeration for CVE-2018-2938

OS Trackers for CVE-2018-2938

Affected software / configurations for CVE-2018-2938

References for CVE-2018-2938