CVE-2020-14664 [High] | Security Vulnerability in Jdk

Vulnerability in the Java SE product of Oracle Java SE (component: JavaFX). The supported version that is affected is Java SE: 8u251. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks require human interaction from a person other than the attacker and 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 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 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-29	4.36%	4.25%	-0.12%
2	2026-06-15	1.07%	4.36%	+3.29%
3	2026-01-07	—	1.07%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-29

4.36%

4.25%

-0.12%

2026-06-15

1.07%

4.36%

+3.29%

2026-01-07

—

1.07%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.3	3.1	HIGH	`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. 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.	1.6	6.0	[email protected]
8.3	3.1	HIGH	`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. 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.	1.6	6.0	[email protected]
5.1	2.0	MEDIUM	`AV:N/AC:H/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:H) Exploitation requires uncommon or highly specific conditions. 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.	4.9	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.3

3.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
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.

1.6

6.0

[email protected]

8.3

3.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
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.

1.6

6.0

[email protected]

5.1

2.0

MEDIUM

AV:N/AC:H/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:H): Exploitation requires uncommon or highly specific conditions.
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.

4.9

6.4

[email protected]

OS Trackers for CVE-2020-14664

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2020-14664 not yet assigned priority: Debian including 1 source packages (openjfx), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4.	https://security-tracker.debian.org/tracker/CVE-2020-14664
`gentoo`	normal	CVE-2020-14664: 2 GLSA(s) (202209-15, 202409-26), 4 atom(s) (dev-java/icedtea, dev-java/icedtea-bin, dev-java/oracle-jdk-bin, dev-java/oracle-jre-bin); latest impact normal.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-14664
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2020-14664
`suse`	high	CVE-2020-14664 severity important: SUSE including 5 source package names (openjfx-11.0.12-2.2, openjfx-devel-11.0.12-2.2, openjfx-javadoc-11.0.12-2.2, openjfx-jmods-11.0.12-2.2, openjfx-src-11.0.12-2.2), 5 product×package rows across 1 product lines (openSUSE Tumbleweed): Fixed 5.	https://www.suse.com/security/cve/CVE-2020-14664/
`ubuntu`	medium	CVE-2020-14664 medium priority: Ubuntu including 1 source packages (openjfx), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 14, DNE 1, needed 1, released 1.	https://ubuntu.com/security/CVE-2020-14664

Affected software / configurations for CVE-2020-14664

Vendor	Product	Version	Raw CPE
oracle	jdk	1.8.0	cpe:2.3:a:oracle:jdk:1.8.0:update251::::::
oracle	jre	1.8.0	cpe:2.3:a:oracle:jre:1.8.0:update251::::::
netapp	7-mode_transition_tool	—	cpe:2.3:a:netapp:7-mode_transition_tool:-:::::::*
netapp	active_iq_unified_manager	>= 7.3	cpe:2.3:a:netapp:active_iq_unified_manager::::::windows::*
netapp	active_iq_unified_manager	>= 9.5	cpe:2.3:a:netapp:active_iq_unified_manager::::::vsphere::*
netapp	cloud_backup	—	cpe:2.3:a:netapp:cloud_backup:-:::::::*
netapp	cloud_secure_agent	—	cpe:2.3:a:netapp:cloud_secure_agent:-:::::::*
netapp	e-series_performance_analyzer	—	cpe:2.3:a:netapp:e-series_performance_analyzer:-:::::::*
netapp	e-series_santricity_os_controller	>= 11.0.0, <= 11.70.2	cpe:2.3:a:netapp:e-series_santricity_os_controller::::::::
netapp	e-series_santricity_web_services	—	cpe:2.3:a:netapp:e-series_santricity_web_services:-:::::web_services_proxy::
netapp	oncommand_insight	—	cpe:2.3:a:netapp:oncommand_insight:-:::::::*
netapp	oncommand_workflow_automation	—	cpe:2.3:a:netapp:oncommand_workflow_automation:-:::::::*
netapp	santricity_unified_manager	—	cpe:2.3:a:netapp:santricity_unified_manager:-:::::::*
netapp	snapmanager	—	cpe:2.3:a:netapp:snapmanager:-:::::sap::
netapp	snapmanager	—	cpe:2.3:a:netapp:snapmanager:-:-::::oracle::*
netapp	steelstore_cloud_integrated_storage	—	cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:::::::*
netapp	storagegrid	>= 9.0.0, <= 9.0.4	cpe:2.3:a:netapp:storagegrid::::::::
netapp	storagegrid	—	cpe:2.3:a:netapp:storagegrid:-:::::::*

References for CVE-2020-14664

URL	Tags
https://security.gentoo.org/glsa/202209-15	Third Party Advisory
https://security.netapp.com/advisory/ntap-20200717-0005/	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-897/	Third Party Advisory VDB Entry

URL

CVE-2020-14664

Exploit prediction scoring system (EPSS) score for CVE-2020-14664

Common vulnerability scoring system (CVSS) metrics for CVE-2020-14664

Weakness enumeration for CVE-2020-14664

OS Trackers for CVE-2020-14664

Affected software / configurations for CVE-2020-14664

References for CVE-2020-14664