CVE-2020-14781

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: JNDI). Supported versions that are affected are Java SE: 7u271, 8u261, 11.0.8 and 15; Java SE Embedded: 8u261. 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 read access to a subset of Java SE, Java SE Embedded accessible data. 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 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Published: 2020-10-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-14781 is rated Moderate Risk (45.4/100): CVSS Low severity, with medium exploitation likelihood (EPSS 2.30%). EPSS rose +2.20% 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-2020-14781

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 0.10% 2.30% +2.20%
2 2025-11-21 0.65% 0.10% -0.55%
3 2025-11-18 — 0.65% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-14781

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: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: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: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.
 2.2 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-2020-14781

OS Trackers for CVE-2020-14781

vendor priority summary link
alpine — CVE-2020-14781: 3 source package rows (openjdk11, openjdk7, openjdk8); 17 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 17, open 0. https://security.alpinelinux.org/vuln/CVE-2020-14781
debian not yet assigned CVE-2020-14781 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-2020-14781
gentoo normal CVE-2020-14781: 2 GLSA(s) (202101-19, 202409-26), 5 atom(s) (dev-java/icedtea, dev-java/icedtea-bin, dev-java/openjdk, dev-java/openjdk-bin, dev-java/openjdk-jre-bin); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-14781
redhat medium — https://access.redhat.com/security/cve/CVE-2020-14781
suse medium CVE-2020-14781 severity moderate: SUSE including 419 source package names (10.1.33-openjdk11-59.4:java-11-openjdk-11.0.9.0-3.48.1, 10.1.33-openjdk11-59.4:java-11-openjdk-headless-11.0.9.0-3.48.1, …), 1119 product×package rows across 135 product lines (Container bci/openjdk, Container bci/openjdk-devel, … (135 product lines)): Fixed 888, Known Affected 231. https://www.suse.com/security/cve/CVE-2020-14781/
ubuntu medium CVE-2020-14781 medium priority: Ubuntu including 7 source packages (icedtea-web, openjdk-12, …), 112 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 59, released 18, ignored 15, needs-triage 12, not-affected 8. https://ubuntu.com/security/CVE-2020-14781

Affected software / configurations for CVE-2020-14781

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 7 cpe:2.3:a:oracle:openjdk:7:update271:*:*:*:*:*:*
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 openjdk 8 cpe:2.3:a:oracle:openjdk:8:update262:*:*:*:*:*:*
oracle openjdk 11 cpe:2.3:a:oracle:openjdk:11:*:*:*:*:*:*:*
oracle openjdk 11.0.1 cpe:2.3:a:oracle:openjdk:11.0.1:*:*:*:*:*:*:*
oracle openjdk 11.0.2 cpe:2.3:a:oracle:openjdk:11.0.2:*:*:*:*:*:*:*
oracle openjdk 11.0.3 cpe:2.3:a:oracle:openjdk:11.0.3:*:*:*:*:*:*:*
oracle openjdk 11.0.4 cpe:2.3:a:oracle:openjdk:11.0.4:*:*:*:*:*:*:*
oracle openjdk 11.0.5 cpe:2.3:a:oracle:openjdk:11.0.5:*:*:*:*:*:*:*
oracle openjdk 11.0.6 cpe:2.3:a:oracle:openjdk:11.0.6:*:*:*:*:*:*:*
oracle openjdk 11.0.7 cpe:2.3:a:oracle:openjdk:11.0.7:*:*:*:*:*:*:*
oracle openjdk 11.0.8 cpe:2.3:a:oracle:openjdk:11.0.8:*:*:*:*:*:*:*
oracle openjdk 13 cpe:2.3:a:oracle:openjdk:13:*:*:*:*:*:*:*
oracle openjdk 13.0.1 cpe:2.3:a:oracle:openjdk:13.0.1:*:*:*:*:*:*:*

References for CVE-2020-14781

cvelogic Threat Intelligence