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Public proof of conceptFix available

CVE-2021-42392

A public proof of concept exists; no exploitation attested.

  • Published2022-01-10
  • Fixed in2.0.206
  • WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The org.h2.util.JdbcUtils.getConnection method of the H2 database takes as parameters the class name of the driver and URL of the database. An attacker may pass a JNDI driver name and a URL leading to a LDAP or RMI servers, causing remote code execution. This can be exploited through various attack vectors, most notably through the H2 Console which leads to unauthenticated remote code execution.

Timeline

dates in UTC
  1. 2022-01-1014:10CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-42392?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-42392?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD
h2
BranchAffectedFixed in
2.0≥ 1.1.100, < 2.0.2062.0.206
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
10.0= 10.0no fix published
11.0= 11.0no fix published
H2database h2
BranchAffectedFixed in
2.0≥ 1.1.000, ≤ 2.0.204no fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • com.h2database:h2TuxCare:Mavenfrom 1.4.200 · fixed in 1.4.200-tuxcare.1
  • com.h2database:h2TuxCare:Mavenfrom 1.3.176 · fixed in 1.3.176-tuxcare.1
  • eap7-activemq-artemisRed Hat:jboss_enterprise_application_platform:7.4::el8all versions · fixed in 0:2.16.0-9.redhat_00042.1.el8eapand 15 other packages
  • eap7-activemq-artemisRed Hat:jboss_enterprise_application_platform:7.4::el7all versions · fixed in 0:2.16.0-9.redhat_00042.1.el7eapand 15 other packages
  • eap7-h2databaseRed Hat:jboss_enterprise_application_platform:7.4::el8all versions · fixed in 0:1.4.197-2.redhat_00004.1.el8eap
  • eap7-h2databaseRed Hat:jboss_enterprise_application_platform:7.4::el7all versions · fixed in 0:1.4.197-2.redhat_00004.1.el7eap
  • eap7-hal-consoleRed Hat:jboss_enterprise_application_platform:7.4::el8all versions · fixed in 0:3.3.12-1.Final_redhat_00001.1.el8eap
  • eap7-hal-consoleRed Hat:jboss_enterprise_application_platform:7.4::el7all versions · fixed in 0:3.3.12-1.Final_redhat_00001.1.el7eap

39 more package ranges on OSV.dev

Vendor advisories

  • CVE-2021-42392 Red Hat Product Security82 products fixed · 13 known affected

    h2: Remote Code Execution in Console

    h2 as a component of Red Hat BPM Suite 6 · h2 as a component of Red Hat build of Apicurio Registry 2 · h2 as a component of Red Hat Integration Camel Quarkus 1 · +10 more

  • RHSA-2025:1747 Red Hat Product Security52 products fixed

    Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.3.12 security update

  • RHSA-2022:7417 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Single Sign-On 7.6.1 security update

  • RHSA-2022:7411 Red Hat Product Security10 products fixed

    Red Hat Security Advisory: Red Hat Single Sign-On 7.6.1 security update on RHEL 9

  • RHSA-2022:7410 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat Single Sign-On 7.6.1 security update on RHEL 8

  • RHSA-2022:7409 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat Single Sign-On 7.6.1 security update on RHEL 7

7 more advisories

Full record on NVD

Fix

  1. Update h2 to 2.0.206
  2. Vendor fix Red Hat Product Security RHSA-2025:1747 · 52 productsBefore applying this update, ensure all previously released errata relevant to your system have been applied. Also, back up your existing installation, including all applications, configuration files, databases and database settings. For details on how to apply this update, refer to: https://access…
  3. Vendor fix Red Hat Product Security RHSA-2022:7417 · 1 productBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link (you must log in to download the update).
  4. Vendor fix Red Hat Product Security RHSA-2022:7411 · 10 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  5. Vendor fix Red Hat Product Security RHSA-2022:6782 · 3 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  6. Vendor fix Red Hat Product Security RHSA-2022:4919 · 2 productsBefore applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  7. Vendor fix Red Hat Product Security RHSA-2022:4922 · 1 productBefore applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications. The References section of this erratum contains a download link (you must log in to download the update).

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedcybersecurityworks553/CVE-2021-42392-DetectBe-Innova/CVE-2021-42392-exploit-lab
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-01-10
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-h376-j262-vhq6

Frequently asked questions

What is CVE-2021-42392?

The org.h2.util.JdbcUtils.getConnection method of the H2 database takes as parameters the class name of the driver and URL of the database. An attacker may pass a JNDI driver name and a URL leading to a LDAP or RMI servers, causing remote code execution. This can be exploited through various attack vectors, most notably through the H2 Console which leads to unauthenticated remote code execution.

Is CVE-2021-42392 actively exploited?

Active exploitation of CVE-2021-42392 has not been confirmed. Its EPSS score was 83.2% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-42392?

CVE-2021-42392 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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