CVE-2021-42392

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 63.2%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 63%
CISA-KEV: Not listedEPSS PROB: 63%CVSS: 9.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
74(Track*)
EG Risk 74/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation63% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
63%
EPSS %ILE
99%
KEV
Not listed

Published

January 10, 2022

Last Modified

November 21, 2024

Advisory Details (6)

Auto-updated Aug 21, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: github.
generic Patch Available

[SECURITY] [DLA 2923-1] h2database security update

https://lists.debian.org/debian-lts-announce/2022/02/msg00017.html
generic🔴 Active Exploitation

JNDI-Related Vulnerability Discovered in H2 Database Console | JFrog

https://jfrog.com/blog/the-jndi-strikes-back-unauthenticated-rce-in-h2-database-console/
github Patch Available

RCE in H2 Console · Advisory · h2database/h2database · GitHub

https://github.com/h2database/h2database/security/advisories/GHSA-h376-j262-vhq6
generic🟡 PoC Available

Log4Shell-Critical Remote Code Execution Vulnerability in H2database C | SecPod

https://www.secpod.com/blog/log4shell-critical-remote-code-execution-vulnerability-in-h2database-console/
generic

[SECURITY] [DSA 5076-1] h2database security update

https://www.debian.org/security/2022/dsa-5076
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20220119-0001/

Vendor Advisories for CVE-2021-42392(12)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibh2-java-doc (1.4.197-4+deb10u1build0.21.10.1) @ impish2026-05-26ubuntu
ubuntulibh2-java-doc (1.4.191-1ubuntu0.1~esm1) @ xenial2026-05-26ubuntu
redhateap7-wildfly-0:7.3.12-3.GA_redhat_00002.1.el7eap2025-02-24redhat
redhath22022-11-03redhat
redhatrh-sso7-keycloak-0:18.0.3-1.redhat_00001.1.el8sso2022-11-03redhat
redhatrh-sso7-keycloak-0:18.0.3-1.redhat_00001.1.el9sso2022-11-03redhat
redhatrh-sso7-keycloak-0:18.0.3-1.redhat_00001.1.el7sso2022-11-03redhat
redhatrh-sso7-keycloak-0:15.0.8-1.redhat_00001.1.el7sso2022-10-04redhat
redhatrh-sso7-keycloak-0:15.0.8-1.redhat_00001.1.el8sso2022-10-04redhat
redhateap7-h2database-0:1.4.197-2.redhat_00004.1.el8eap2022-06-06redhat
redhateap7-h2database-0:1.4.197-2.redhat_00004.1.el7eap2022-06-06redhat
redhatpatch2022-03-22redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(7 across 7 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
h2database1.4.197-41.4.197-4+deb10u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
h2database1.4.197-41.4.197-4+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
h2database—2.1.210-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
h2database—2.1.210-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
h2database—2.1.210-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
h2database1.4.193-11.4.193-1+deb9u1—
Maven(1)
PackageVulnerable rangeFixed inDependents
com.h2database:h21.1.100 ... 2.0.204 (103 versions)2.0.206—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-26 14:43 UTCEPSS rescore
  2. 2026-08-24 14:13 UTCEPSS rescore
  3. 2026-08-21 23:46 UTCEPSS rescore
  4. 2026-08-20 22:52 UTCEPSS rescore
  5. 2026-08-20 22:52 UTCEPSS rescore
  6. 2026-08-19 17:01 UTCEPSS rescore
  7. 2026-08-19 11:02 UTCOSV refresh
  8. 2026-08-18 13:45 UTCEPSS rescore
  9. 2026-08-17 13:44 UTCEPSS rescore
  10. 2026-08-16 02:11 UTCEPSS rescore
  11. 2026-08-15 01:27 UTCEPSS rescore
  12. 2026-08-13 21:57 UTCEPSS rescore
  13. 2026-08-12 13:48 UTCEPSS rescore
  14. 2026-08-11 13:38 UTCEPSS rescore
  15. 2026-08-09 13:44 UTCEPSS rescore
  16. 2026-08-08 16:33 UTCEPSS rescore
  17. 2026-08-07 16:24 UTCEPSS rescore
  18. 2026-08-05 19:14 UTCEPSS rescore
  19. 2026-08-04 06:57 UTCOSV refresh
  20. 2026-08-01 04:13 UTCEPSS rescore
  21. 2026-07-30 16:25 UTCEPSS rescore
  22. 2026-07-30 01:28 UTCEPSS rescore
  23. 2026-07-28 15:33 UTCEPSS rescore
  24. 2026-07-26 14:52 UTCEPSS rescore
  25. 2026-07-26 14:52 UTCEPSS rescore
Show 65 more
  1. 2026-07-25 14:15 UTCEPSS rescore
  2. 2026-07-24 14:15 UTCEPSS rescore
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 02:04 UTCEG score recompute
  5. 2026-07-22 22:51 UTCEG score recompute
  6. 2026-07-22 14:06 UTCEPSS rescore
  7. 2026-07-20 17:05 UTCEPSS rescore
  8. 2026-07-19 02:27 UTCEPSS rescore
  9. 2026-07-18 04:29 UTCOSV refresh
  10. 2026-07-16 17:00 UTCEPSS rescore
  11. 2026-07-16 17:00 UTCEPSS rescore
  12. 2026-07-15 16:55 UTCEPSS rescore
  13. 2026-07-15 16:55 UTCEPSS rescore
  14. 2026-07-13 22:27 UTCEPSS rescore
  15. 2026-07-13 22:27 UTCEPSS rescore
  16. 2026-07-13 06:11 UTCEPSS rescore
  17. 2026-07-13 06:11 UTCEPSS rescore
  18. 2026-07-12 05:44 UTCEPSS rescore
  19. 2026-07-11 08:25 UTCEPSS rescore
  20. 2026-07-11 08:25 UTCEPSS rescore
  21. 2026-07-09 19:07 UTCEPSS rescore
  22. 2026-07-06 02:21 UTCEPSS rescore
  23. 2026-07-06 02:21 UTCEPSS rescore
  24. 2026-07-02 16:57 UTCEPSS rescore
  25. 2026-07-01 15:04 UTCEPSS rescore
  26. 2026-06-30 00:03 UTCOSV refresh
  27. 2026-06-28 04:54 UTCEPSS rescore
  28. 2026-06-28 04:54 UTCEPSS rescore
  29. 2026-06-27 03:06 UTCEPSS rescore
  30. 2026-06-27 03:06 UTCEPSS rescore
  31. 2026-06-25 13:48 UTCEPSS rescore
  32. 2026-06-25 13:48 UTCEPSS rescore
  33. 2026-06-23 21:31 UTCEPSS rescore
  34. 2026-06-23 21:31 UTCEPSS rescore
  35. 2026-06-21 01:58 UTCEPSS rescore
  36. 2026-06-21 01:58 UTCEPSS rescore
  37. 2026-06-18 17:51 UTCEPSS rescore
  38. 2026-06-18 17:51 UTCEPSS rescore
  39. 2026-06-17 17:51 UTCEPSS rescore
  40. 2026-06-17 17:51 UTCEPSS rescore
  41. 2026-06-17 17:51 UTCEPSS rescore
  42. 2026-06-16 17:51 UTCEPSS rescore
  43. 2026-06-16 17:51 UTCEPSS rescore
  44. 2026-06-15 17:46 UTCEPSS rescore
  45. 2026-06-14 23:15 UTCEPSS rescore
  46. 2026-06-14 23:15 UTCEPSS rescore
  47. 2026-06-13 22:58 UTCEPSS rescore
  48. 2026-06-13 22:58 UTCEPSS rescore
  49. 2026-06-12 23:10 UTCEPSS rescore
  50. 2026-06-12 12:40 UTCOSV refresh
  51. 2026-06-10 22:16 UTCEPSS rescore
  52. 2026-06-10 22:16 UTCEPSS rescore
  53. 2026-06-08 14:15 UTCEPSS rescore
  54. 2026-06-08 14:15 UTCEPSS rescore
  55. 2026-06-05 22:45 UTCEPSS rescore
  56. 2026-05-31 00:15 UTCEPSS rescore
  57. 2026-05-31 00:15 UTCEPSS rescore
  58. 2026-05-27 13:39 UTCEPSS rescore
  59. 2026-05-27 13:39 UTCEPSS rescore
  60. 2026-05-26 07:17 UTCEPSS rescore
  61. 2026-05-26 07:17 UTCEPSS rescore
  62. 2026-05-26 07:17 UTCEPSS rescore
  63. 2026-05-26 05:12 UTCEG score recompute
  64. 2026-05-26 05:12 UTCVendor advisory
  65. 2026-05-23 11:34 UTCOSV refresh

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCcybersecurityworks553/CVE-2021-42392-Detect
    First seen Jan 9, 2022
    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2021-42392?
CVE-2021-42392 is a critical vulnerability published on January 10, 2022. 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…
When was CVE-2021-42392 disclosed?
CVE-2021-42392 was first published in the National Vulnerability Database on January 10, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-42392 actively exploited?
CVE-2021-42392 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63% probability of exploitation in the next 30 days, which ranks it in the top 0.9% of all scored CVEs.
What is the CVSS score of CVE-2021-42392?
CVE-2021-42392 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-42392?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42392, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-42392

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