5.9
MEDIUM
CVE-2021-27568
Apache Netplex JSON-Smart Uncaught Exception Denial of Service and Information Disclosure
Description

An issue was discovered in netplex json-smart-v1 through 2015-10-23 and json-smart-v2 through 2.4. An exception is thrown from a function, but it is not caught, as demonstrated by NumberFormatException. When it is not caught, it may cause programs using the library to crash or expose sensitive information.

INFO

Published Date :

Feb. 23, 2021, 2:15 a.m.

Last Modified :

Nov. 21, 2024, 5:58 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Public PoC/Exploit Available at Github

CVE-2021-27568 has a 9 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-27568 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Oracle weblogic_server
2 Oracle peoplesoft_enterprise_peopletools
3 Oracle communications_cloud_native_core_policy
4 Oracle utilities_framework
5 Oracle oss_support_tools
1 Json-smart_project json-smart-v1
2 Json-smart_project json-smart-v2
: Total Affected Vendor : 2 | Products : 7
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-27568.

URL Resource
https://github.com/netplex/json-smart-v1/issues/7 Exploit Third Party Advisory
https://github.com/netplex/json-smart-v2/issues/60 Exploit Third Party Advisory
https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6%40%3Ccommits.druid.apache.org%3E
https://www.oracle.com//security-alerts/cpujul2021.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
https://github.com/netplex/json-smart-v1/issues/7 Exploit Third Party Advisory
https://github.com/netplex/json-smart-v2/issues/60 Exploit Third Party Advisory
https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6%40%3Ccommits.druid.apache.org%3E
https://www.oracle.com//security-alerts/cpujul2021.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
OpenLabSE/VulFinder

Submit to AAAI related data and code

Updated: 2 weeks, 5 days ago
0 stars 0 fork 0 watcher
Born at : July 15, 2025, 11:28 a.m. This repo has been linked 18 different CVEs too.
Profile Photo
arsalanraja987/java-insecure-random-cve-2021-27568

Demo of CVE-2021-27568: Insecure randomness in token generation

Java Shell

Updated: 3 weeks, 5 days ago
0 stars 0 fork 0 watcher
Born at : July 7, 2025, 6:53 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
VulFinder/VulFinder

This is a repository for IJCAI 2025

Updated: 5 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Jan. 19, 2025, 1:20 p.m. This repo has been linked 17 different CVEs too.
Profile Photo
TinkerBoard-Android/rockchip-android-external-jazzer-api

None

Starlark Java Kotlin C++ Shell Dockerfile C

Updated: 11 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 30, 2024, 1:59 a.m. This repo has been linked 13 different CVEs too.
Profile Photo
stuartwdouglasmidstream/github--netplex--json-smart-v2

None

Java

Updated: 1 year, 2 months ago
0 stars 0 fork 0 watcher
Born at : May 6, 2024, 5:08 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
msft-mirror-aosp/platform.external.jazzer-api

None

Starlark Kotlin Java Shell C++ Dockerfile

Updated: 2 years, 4 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 27, 2023, 12:47 a.m. This repo has been linked 10 different CVEs too.
Profile Photo
GanbaruTobi/CVEs_PoCs

None

Java

Updated: 4 years, 5 months ago
0 stars 0 fork 0 watcher
Born at : Feb. 26, 2021, 5:45 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
mosaic-hgw/jMeter

Contains Dockerfile for jMeter

Dockerfile

Updated: 3 years, 7 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 28, 2016, 2:22 p.m. This repo has been linked 7 different CVEs too.
Profile Photo
netplex/json-smart-v2

None

Java Shell

Updated: 1 day, 9 hours ago
158 stars 74 fork 74 watcher
Born at : May 30, 2014, 8:01 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27568 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27568 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/netplex/json-smart-v1/issues/7
    Added Reference https://github.com/netplex/json-smart-v2/issues/60
    Added Reference https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396%40%3Ccommits.druid.apache.org%3E
    Added Reference https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
    Added Reference https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6%40%3Ccommits.druid.apache.org%3E
    Added Reference https://www.oracle.com//security-alerts/cpujul2021.html
    Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html
    Added Reference https://www.oracle.com/security-alerts/cpujan2022.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6%40%3Ccommits.druid.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396%40%3Ccommits.druid.apache.org%3E [No types assigned]
    Removed Reference MITRE https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6@%3Ccommits.druid.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396@%3Ccommits.druid.apache.org%3E
  • Reanalysis by [email protected]

    Feb. 15, 2023

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P)
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Modified Analysis by [email protected]

    May. 12, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
  • CVE Modified by [email protected]

    Apr. 20, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 01, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396@%3Ccommits.druid.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396@%3Ccommits.druid.apache.org%3E Mailing List, Third Party Advisory
    Changed Reference Type https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3E Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6@%3Ccommits.druid.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6@%3Ccommits.druid.apache.org%3E Mailing List, Third Party Advisory
    Changed Reference Type https://www.oracle.com//security-alerts/cpujul2021.html No Types Assigned https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory
    Changed Reference Type https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:oss_support_tools:*:*:*:*:*:*:*:* versions up to (excluding) 2.12.42 *cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:* *cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:* *cpe:2.3:a:oracle:utilities_framework:4.4.0.0.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:utilities_framework:4.4.0.2.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:utilities_framework:4.4.0.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 07, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpujan2022.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2021

    Action Type Old Value New Value
    Added Reference https://www.oracle.com//security-alerts/cpujul2021.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 13, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396@%3Ccommits.druid.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 13, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6@%3Ccommits.druid.apache.org%3E [No Types Assigned]
  • Reanalysis by [email protected]

    May. 04, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:json-smart_project:json-smart-v1:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.2 *cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:* versions up to (including) 2.4 OR *cpe:2.3:a:json-smart_project:json-smart-v1:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.2 *cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.1 *cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:* versions from (including) 2.4 up to (excluding) 2.4.1
  • Reanalysis by [email protected]

    Apr. 16, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:json-smart_project:json-smart-v1:*:*:*:*:*:*:*:* versions up to (including) 2015-10-23 *cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:* versions up to (including) 2.4 OR *cpe:2.3:a:json-smart_project:json-smart-v1:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.2 *cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:* versions up to (including) 2.4
  • Initial Analysis by [email protected]

    Mar. 01, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type https://github.com/netplex/json-smart-v1/issues/7 No Types Assigned https://github.com/netplex/json-smart-v1/issues/7 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/netplex/json-smart-v2/issues/60 No Types Assigned https://github.com/netplex/json-smart-v2/issues/60 Exploit, Third Party Advisory
    Added CWE NIST CWE-754
    Added CPE Configuration OR *cpe:2.3:a:json-smart_project:json-smart-v1:*:*:*:*:*:*:*:* versions up to (including) 2015-10-23 *cpe:2.3:a:json-smart_project:json-smart-v2:*:*:*:*:*:*:*:* versions up to (including) 2.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27568 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-27568 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.52 }} -0.01%

score

0.65834

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: