CVE-2022-23302

HIGHPre-NVD 8.88.9
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than the CVSS score beside it.

Score elevated to 8.9 because EPSS predicted 64% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs) when EchelonGraph scored this CVE. The CNA's CVSS baseline 8.8 retained for reference (NVD's own analysis pending). Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 4 sources updated this weekElevated

Also known asEUVD-2022-0721 (ENISA EUVD) · GHSA-w9p3-5cr8-m3jj (GitHub Security Advisories)Source: ENISA EUVD

8.9EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 64%
CISA-KEV: Not listedEPSS PROB: 64%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration or if the configuration references an LDAP service the attacker has access to. The attacker can provide a TopicConnectionFactoryBindingName configuration causing JMSSink to perform JNDI requests that result in remote code execution in a similar fashion to CVE-2021-4104. Note this issue only affects Log4j 1.x when specifically configured to use JMSSink, which is not the default. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions.

CVSS v3
8.8
EG Score
8.9HIGHhigh confidence
EG Risk
65
EG Risk 65/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation64% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
64%
EPSS %ILE
99th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.9): severity, escalated by confirmed exploitation. This CVE's 8.9 is EPSS's lift toward 9.0 from its impact severity (EG Severity, CVSS 8.8 HIGH): a likelihood of exploitation, not impact.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
64% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

January 18, 2022

Last Modified

May 27, 2026

Advisory Details (4)

Auto-updated May 22, 2026
Patch available.
Web page

oss-security - CVE-2022-23302: Deserialization of untrusted data in JMSSink in Apache Log4j 1.x

http://www.openwall.com/lists/oss-security/2022/01/18/3

Patch Availability(23)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhateap7-log4j-jboss-logmanager-0:1.2.2-1.Final_redhat_00002.1.ep7.el72024-08-26redhat
redhatjbossweb-0:7.5.32-2.Final_redhat_1.2.ep6.el72022-06-30redhat
redhatpatch2022-06-30redhat
redhatjbossweb-0:7.5.32-2.Final_redhat_1.2.ep6.el62022-06-30redhat
redhateap7-log4j-0:2.17.1-1.redhat_00001.1.el8eap2022-04-11redhat
redhatorg.jboss.logmanager/log4j-jboss-logmanager:1.2.2.Final-redhat-000022022-04-11redhat
redhateap7-log4j-0:2.17.1-1.redhat_00001.1.el7eap2022-04-11redhat
redhatlog4j2022-02-23redhat
redhattomcat-native-0:1.2.23-26.redhat_26.ep7.el72022-02-14redhat
redhatlog4j-eap62022-02-14redhat
redhatsnmp4j-0:3.6.4-0.1.el8ev2022-02-08redhat
redhatpatch2022-02-08redhat
redhatrh-sso7-keycloak-0:15.0.4-1.redhat_00003.1.el7sso2022-02-07redhat
redhatrh-sso-7/sso74-openj9-openshift-rhel8:7.4-602022-02-07redhat
redhatlog4j-0:1.2.17-18.el7_42022-02-07redhat
redhatrh-sso-7/sso74-openshift-rhel8:7.4-452022-02-07redhat
redhatrh-sso-7/sso7-rhel8-operator-bundle:7.5.1-92022-02-07redhat
redhatrh-sso7-keycloak-0:15.0.4-1.redhat_00003.1.el8sso2022-02-07redhat
redhatlog4j-jboss-logmanager-0:1.1.4-3.Final_redhat_00002.1.ep6.el72022-02-03redhat
redhateap7-log4j-jboss-logmanager-0:1.2.2-1.Final_redhat_00002.1.el7eap2022-02-03redhat
redhatrh-maven36-log4j12-0:1.2.17-23.4.el72022-02-03redhat
mavenlog4j:log4j—ghsa
mavenorg.zenframework.z8.dependencies.commons:log4j-1.2.17—ghsa

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 6 ecosystems)
Maven(2)
PackageVulnerable rangeFix by version rangeDependents
log4j:log4j1.1.3 ... 1.2.9 (14 versions)
  • every version through 1.2.17: no fix on record
—
org.zenframework.z8.dependencies.commons:log4j-1.2.172.0
  • every version through 2.0: no fix on record
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
apache-log4j1.21.2.17-10
  • every version up to 1.2.17-10+deb11u1: fixed in 1.2.17-10+deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
apache-log4j1.2—
  • every version up to 1.2.17-11: fixed in 1.2.17-11
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
apache-log4j1.2—
  • every version up to 1.2.17-11: fixed in 1.2.17-11
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
apache-log4j1.2—
  • every version up to 1.2.17-11: fixed in 1.2.17-11
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
apache-log4j1.21.2.17-7, 1.2.17-7+deb9u1
  • every version up to 1.2.17-7+deb9u2: fixed in 1.2.17-7+deb9u2
—

Weakness Classification(1)

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

Additional Vendor Advisories

(14)

Data Freshness Timeline

(refreshed 7× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 91 of 173 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 9 repeat rows among the latest 100 are merged into the row they repeat. The 82 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-03 16:39 UTCEPSS rescoreEPSS 64% · 99th percentile
  2. 2026-10-31 16:29 UTCEPSS rescoreEPSS 64% · 99th percentile
  3. 2026-10-30 16:30 UTCEPSS rescoreEPSS 64% · 99th percentile
  4. 2026-10-28 22:25 UTCEG score recompute
  5. 2026-10-28 22:25 UTCVendor advisory
  6. 2026-10-28 22:25 UTCGHSA enrichmentGHSA-w9p3-5cr8-m3jj · GitHub severity HIGH · GitHub CVSS 8.8
  7. 2026-10-28 16:28 UTCEPSS rescoreEPSS 64% · 99th percentile
  8. 2026-10-27 16:28 UTCEPSS rescoreEPSS 64% · 99th percentile
  9. 2026-10-25 18:13 UTCEG score recompute
  10. 2026-10-25 16:29 UTCEPSS rescoreEPSS 64% · 99th percentile
  11. 2026-10-23 16:28 UTCEPSS rescoreEPSS 64% · 99th percentile
  12. 2026-10-22 16:30 UTCEPSS rescoreEPSS 64% · 99th percentile
  13. 2026-10-21 16:28 UTCEPSS rescoreEPSS 64% · 99th percentile
  14. 2026-10-21 07:57 UTCEG score recompute
  15. 2026-10-21 07:57 UTCVendor advisory
  16. 2026-10-21 07:56 UTCGHSA enrichmentGHSA-w9p3-5cr8-m3jj · GitHub severity HIGH · GitHub CVSS 8.8
  17. 2026-10-20 16:29 UTCEPSS rescoreEPSS 64% · 99th percentile
  18. 2026-10-19 16:28 UTCEPSS rescoreEPSS 64% · 99th percentile
  19. 2026-10-18 08:43 UTCEG score recompute
  20. 2026-10-17 16:29 UTCEPSS rescoreEPSS 64% · 99th percentile
  21. 2026-10-15 16:28 UTCEPSS rescoreEPSS 64% · 99th percentile
  22. 2026-10-14 16:29 UTCEPSS rescoreEPSS 64% · 99th percentile
  23. 2026-10-13 16:29 UTCEPSS rescoreEPSS 64% · 99th percentile
  24. 2026-10-12 18:59 UTCEG score recompute
  25. 2026-10-12 16:30 UTCEPSS rescoreEPSS 64% · 99th percentile
Show 66 more
  1. 2026-10-11 23:25 UTCEG score recompute
  2. 2026-10-10 19:56 UTCEPSS rescoreEPSS 64% · 99th percentile
  3. 2026-10-09 20:04 UTCEPSS rescoreEPSS 64% · 99th percentile
  4. 2026-10-08 16:40 UTCEPSS rescoreEPSS 64% · 99th percentile
  5. 2026-10-08 08:35 UTCOSV refresh
  6. 2026-10-07 23:45 UTCEPSS rescoreEPSS 64% · 99th percentile
  7. 2026-10-06 15:14 UTCEPSS rescoreEPSS 64% · 99th percentile
  8. 2026-10-03 14:22 UTCEPSS rescoreEPSS 64% · 99th percentile
  9. 2026-09-30 15:50 UTCEG score recompute
  10. 2026-09-30 15:00 UTCEPSS rescoreEPSS 64% · 99th percentile
  11. 2026-09-26 00:22 UTCEPSS rescoreEPSS 64% · 99th percentile
  12. 2026-09-24 14:00 UTCEPSS rescoreEPSS 64% · 99th percentile
  13. 2026-09-23 13:45 UTCEPSS rescoreEPSS 64% · 99th percentile
  14. 2026-09-18 14:36 UTCOSV refresh
  15. 2026-09-17 19:23 UTCEPSS rescoreEPSS 64% · 99th percentile
  16. 2026-09-16 14:05 UTCEPSS rescoreEPSS 64% · 99th percentile
  17. 2026-09-15 03:06 UTCEPSS rescoreEPSS 64% · 99th percentile
  18. 2026-09-13 16:43 UTCEPSS rescoreEPSS 64% · 99th percentile
  19. 2026-09-12 14:57 UTCEPSS rescoreEPSS 64% · 99th percentile
  20. 2026-09-11 14:49 UTCEPSS rescoreEPSS 64% · 99th percentile
  21. 2026-09-11 09:33 UTCEPSS rescoreEPSS 64% · 99th percentile
  22. 2026-09-07 15:58 UTCEPSS rescoreEPSS 64% · 99th percentile
  23. 2026-09-06 13:45 UTCEPSS rescoreEPSS 64% · 99th percentile
  24. 2026-09-05 15:25 UTCEPSS rescoreEPSS 64% · 99th percentile
  25. 2026-09-04 13:57 UTCEPSS rescoreEPSS 64% · 99th percentile
  26. 2026-09-02 14:09 UTCEPSS rescoreEPSS 64% · 99th percentile
  27. 2026-09-01 13:51 UTCEPSS rescoreEPSS 64% · 99th percentile
  28. 2026-08-30 19:14 UTCEPSS rescoreEPSS 64% · 99th percentile
  29. 2026-08-30 16:51 UTCOSV refresh
  30. 2026-08-28 21:38 UTCEPSS rescoreEPSS 64% · 99th percentile
  31. 2026-08-27 14:22 UTCEPSS rescoreEPSS 64% · 99th percentile
  32. 2026-08-26 14:43 UTCEPSS rescoreEPSS 64% · 99th percentile
  33. 2026-08-25 13:46 UTCEPSS rescoreEPSS 64% · 99th percentile
  34. 2026-08-24 14:13 UTCEPSS rescoreEPSS 64% · 99th percentile
  35. 2026-08-21 23:46 UTCEPSS rescoreEPSS 64% · 99th percentile
  36. 2026-08-20 22:52 UTCEPSS rescoreEPSS 64% · 99th percentile
  37. 2026-08-19 17:01 UTCEPSS rescoreEPSS 64% · 99th percentile
  38. 2026-08-18 13:45 UTCEPSS rescoreEPSS 64% · 99th percentile
  39. 2026-08-17 13:44 UTCEPSS rescoreEPSS 64% · 99th percentile
  40. 2026-08-16 02:11 UTCEPSS rescoreEPSS 64% · 99th percentile
  41. 2026-08-15 01:27 UTCEPSS rescoreEPSS 64% · 99th percentile
  42. 2026-08-14 04:29 UTCOSV refresh
  43. 2026-08-12 13:48 UTCEPSS rescoreEPSS 64% · 99th percentile
  44. 2026-08-07 16:24 UTCEPSS rescoreEPSS 64% · 99th percentile
  45. 2026-08-05 19:15 UTCEPSS rescoreEPSS 64% · 99th percentile
  46. 2026-08-04 10:34 UTCEPSS rescoreEPSS 64% · 99th percentile
  47. 2026-08-03 10:33 UTCEPSS rescoreEPSS 64% · 99th percentile
  48. 2026-07-30 16:25 UTCEPSS rescoreEPSS 62% · 99th percentile
  49. 2026-07-30 01:28 UTCEPSS rescoreEPSS 62% · 99th percentile
  50. 2026-07-29 09:07 UTCOSV refresh
  51. 2026-07-28 15:33 UTCEPSS rescoreEPSS 62% · 99th percentile
  52. 2026-07-26 14:52 UTCEPSS rescoreEPSS 62% · 99th percentile
  53. 2026-07-25 14:15 UTCEPSS rescoreEPSS 62% · 99th percentile
  54. 2026-07-24 14:15 UTCEPSS rescoreEPSS 62% · 99th percentile
  55. 2026-07-23 14:16 UTCEPSS rescoreEPSS 62% · 99th percentile
  56. 2026-07-23 02:08 UTCEG score recompute▲ 0.10
  57. 2026-07-22 22:55 UTCEG score recompute
  58. 2026-07-22 14:06 UTCEPSS rescoreEPSS 62% · 99th percentile
  59. 2026-07-21 15:22 UTCEPSS rescoreEPSS 62% · 99th percentile
  60. 2026-07-20 17:05 UTCEPSS rescoreEPSS 62% · 99th percentile
  61. 2026-07-19 14:29 UTCEPSS rescoreEPSS 62% · 99th percentile
  62. 2026-07-18 10:02 UTCEPSS rescoreEPSS 62% · 99th percentile
  63. 2026-07-16 17:00 UTCEPSS rescoreEPSS 62% · 99th percentile
  64. 2026-07-15 16:56 UTCEPSS rescoreEPSS 62% · 99th percentile
  65. 2026-07-15 01:58 UTCEPSS rescoreEPSS 62% · 99th percentile
  66. 2026-07-13 22:27 UTCEPSS rescoreEPSS 62% · 99th percentile

Frequently asked(5)

What is CVE-2022-23302?
CVE-2022-23302 is a high-severity vulnerability; its CVE record was published on January 18, 2022. JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration or if the configuration references an LDAP service the attacker has access to. The attacker can provide a TopicConnectionFactoryBindingName…
When was the CVE record for CVE-2022-23302 published?
The CVE record for CVE-2022-23302 was published on January 18, 2022. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of May 27, 2026; the record at its source may have been updated since.
Is CVE-2022-23302 actively exploited?
CVE-2022-23302 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-23302?
CVE-2022-23302 has a CVSS base score of 8.8 (the CNA's own assessment, by apache; NVD's own analysis pending). EchelonGraph synthesises the CNA's CVSS + FIRST EPSS + GHSA into a combined EG score of 8.9 (HIGH).
How do I remediate CVE-2022-23302?
A fix for CVE-2022-23302 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-23302 are linked in the Vendor Advisories panel on this page.

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