CVE-2020-1714

mediumpriority · track · 36EPSS 0.026 · 85 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.60% (85th) EPSS

CVSS 6.5 · medium

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.07.5highCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.07.5highCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 1.6 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (10)

Products and version ranges known to be affected.

Red Hat KeyCloak≤ before 11.0.0enisa_euvdEU
quarkus quarkus≤ 1.4.2nvdUScpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*
redhat decision manager= 7.0nvdUScpe:2.3:a:redhat:decision_manager:*:*:*:*:*:*:*:*
redhat jboss fuse= 7.0.0nvdUScpe:2.3:a:redhat:jboss_fuse:*:*:*:*:*:*:*:*
redhat keycloak< 11.0.0nvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
redhat openshift application runtimesall versionsnvdUScpe:2.3:a:redhat:openshift_application_runtimes:*:*:*:*:*:*:*:*
redhat process automation= 7.0nvdUScpe:2.3:a:redhat:process_automation:*:*:*:*:*:*:*:*
redhat single sign-on= 7.0nvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
Maven org.keycloak:keycloak-common< 11.0.0osvUSpkg:maven/org.keycloak/keycloak-common
Maven org.keycloak:keycloak-core< 11.0.0osvUSpkg:maven/org.keycloak/keycloak-core

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-m6mm-q862-j366Improper Input Validation in Keycloak2022-02-09ghsa · osvUS
A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2020-05-13modified 2026-06-17

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references (21)

External citations — patches, advisories, analysis.

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