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CVE-2021-27568

23
FAUCET Score

CVE-2021-27568 describes an unhandled exception vulnerability in netplex json-smart-v1 and json-smart-v2 libraries, affecting products like Oracle. This medium-severity vulnerability (CVSS 5.9) can lead to application crashes or information disclosure due to an uncaught NumberFormatException. While the attack vector is network-based with high attack complexity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.3.2CPE matchmatch criteria
cpe:2.3:a:json-smart_project:json-smart-v1:*:*:*:*:*:*:*:*
< 2.3.1CPE matchmatch criteria
cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:*
>= 2.4, < 2.4.1CPE matchmatch criteria
cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:*
1.14.0CPE matchmatch criteria
cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*
< 2.12.42CPE matchmatch criteria
cpe:2.3:a:oracle:oss_support_tools:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.89%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0289 is in the 78th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

mavenpatch availablevia ghsa
Product: net.minidev:json-smartFixed in: 1.3.2
mavenpatch availablevia ghsa
Product: net.minidev:json-smart-miniFixed in: 1.3.2
mavenpatch availablevia ghsa
Product: net.minidev:json-smartFixed in: 2.4.1
mavenpatch availablevia ghsa
Product: net.minidev:json-smartFixed in: 2.3.1
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Fuse 7.9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat AMQ Streams 1.8.0Fixed in: json-smart
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Fuse 7.10Fixed in: json-smart
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Integration
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Integration Camel Quarkus 2
View patch
redhatno patchvia redhat_api
Product: Red Hat Integration Camel K 1Fixed in: json-smart
redhatno patchvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: jenkins-2-plugins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-hadoop
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-hive
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-presto

Vendor Advisories (2)

mavenGHSA-v528-7hrm-frqpmedium

Improper Check for Unusual or Exceptional Conditions in json-smart

Jun 16, 2021
redhatCVE-2021-27568Moderate

json-smart: uncaught exception may lead to crash or information disclosure

Feb 23, 2021

References

github.com / netplex/json-smart-v1/issues/7
ExploitThird Party Advisory
github.com / netplex/json-smart-v2/issues/60
ExploitThird Party Advisory
lists.apache.org / thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396%40%3Ccommits.druid.apache.org%3E
lists.apache.org / thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
lists.apache.org / thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6%40%3Ccommits.druid.apache.org%3E
oracle.com / security-alerts/cpuapr2022.html
PatchThird Party Advisory
oracle.com / security-alerts/cpujan2022.html
PatchThird Party Advisory
oracle.com / /security-alerts/cpujul2021.html
PatchThird Party Advisory