CVE-2020-14578

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 7u261 and 8u251; Java SE Embedded: 8u251. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

Published: 2020-07-15 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-14578 is rated Moderate Risk (49.9/100): CVSS Low severity, with medium exploitation likelihood (EPSS 4.04%). EPSS rose +3.88% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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-2020-14578

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 2026-06-15 0.16% 4.04% +3.88%
2 2025-12-28 0.11% 0.16% +0.05%
3 2025-12-27 — 0.11% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-14578

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L 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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.2 1.4 [email protected]
3.7 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L 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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.2 1.4 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2020-14578

OS Trackers for CVE-2020-14578

vendor priority summary link
alpine — CVE-2020-14578: 2 source package rows (openjdk7, openjdk8); 10 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 10, open 0. https://security.alpinelinux.org/vuln/CVE-2020-14578
debian not yet assigned CVE-2020-14578 not yet assigned priority: Debian including 2 source packages (openjdk-11, openjdk-8), 3 status rows across 2 suites (bullseye, sid): resolved 3. https://security-tracker.debian.org/tracker/CVE-2020-14578
gentoo normal CVE-2020-14578: 3 GLSA(s) (202008-24, 202209-15, 202409-26), 6 atom(s) (dev-java/icedtea, dev-java/icedtea-bin, dev-java/openjdk, dev-java/openjdk-bin, dev-java/oracle-jdk-bin, dev-java/oracle-jre-bin); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-14578
redhat medium — https://access.redhat.com/security/cve/CVE-2020-14578
suse high — https://www.suse.com/security/cve/CVE-2020-14578/
ubuntu medium CVE-2020-14578 medium priority: Ubuntu including 1 source packages (openjdk-8), 6 status rows across 6 suites (bionic, eoan, focal, trusty, upstream, xenial): released 3, DNE 1, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2020-14578

Affected software / configurations for CVE-2020-14578

Vendor Product Version Raw CPE
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:-:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update1:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update10:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update101:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update11:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update111:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update121:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update13:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update131:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update141:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update15:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update151:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update161:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update17:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update171:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update181:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update191:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update2:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update201:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update21:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update211:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update221:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update231:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update241:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update25:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update251:*:*:*:*:*:*
oracle openjdk 7 cpe:2.3:a:oracle:openjdk:7:update261:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:-:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone1:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone2:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone3:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone4:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone5:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone6:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone7:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone8:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:milestone9:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update101:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update102:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update11:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update111:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update112:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update121:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update131:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update141:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update151:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update152:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update161:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update162:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update171:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update172:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update181:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update191:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update192:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update20:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update201:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update202:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update211:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update212:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update221:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update222:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update231:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update232:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update241:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update242:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update25:*:*:*:*:*:*
oracle openjdk 8 cpe:2.3:a:oracle:openjdk:8:update252:*:*:*:*:*:*
oracle jdk 1.7.0 cpe:2.3:a:oracle:jdk:1.7.0:update261:*:*:*:*:*:*
oracle jdk 1.8.0 cpe:2.3:a:oracle:jdk:1.8.0:update251:*:*:*:*:*:*
oracle jre 1.7.0 cpe:2.3:a:oracle:jre:1.7.0:update261:*:*:*:*:*:*
oracle jre 1.8.0 cpe:2.3:a:oracle:jre:1.8.0:update251:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
opensuse leap 15.2 cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 20.04 cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
mcafee epolicy_orchestrator 5.9.0 cpe:2.3:a:mcafee:epolicy_orchestrator:5.9.0:*:*:*:*:*:*:*

References for CVE-2020-14578

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00041.html Mailing List Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10332 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00021.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CFJPOYF3CWYEPCDOAOCNFJTQIKKWPHW/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFZ36XIW5ENQAW6BB7WHRFFTTJX7KGMR/ Third Party Advisory
https://security.gentoo.org/glsa/202008-24 Third Party Advisory
https://security.gentoo.org/glsa/202209-15 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200717-0005/ Third Party Advisory
https://usn.ubuntu.com/4453-1/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4734 Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Patch Vendor Advisory
cvelogic Threat Intelligence