CVE-2022-23307 | A deserialization flaw in the Chainsaw component of Log4j 1 can lead to malicious code execution.

CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw. Prior to Chainsaw V2.0 Chainsaw was a component of Apache Log4j 1.2.x where the same issue exists.

Published: 2022-01-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2022-23307 is rated High Risk (65.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.60%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-23307

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 2.67% 2.60% -0.07%
2 2026-05-22 2.60% 2.67% +0.07%
3 2026-05-14 2.60%

Full EPSS history (40 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-23307

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 5.9 [email protected]
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.0 10.0 [email protected]

Weakness enumeration for CVE-2022-23307

GitHub Security Advisory for CVE-2022-23307

GHSA-f7vh-qwp3-x37m · Severity: critical · Ecosystem: maven — Deserialization of Untrusted Data in Apache Log4j

OS Trackers for CVE-2022-23307

vendor priority summary link
debian not yet assigned CVE-2022-23307 not yet assigned priority: Debian including 1 source packages (apache-log4j1.2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2022-23307
redhat high https://access.redhat.com/security/cve/CVE-2022-23307
suse high CVE-2022-23307 severity important: SUSE including 337 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 500 product×package rows across 62 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (62 product lines)): Fixed 265, Known Affected 231, Known Not Affected 4. https://www.suse.com/security/cve/CVE-2022-23307/
ubuntu medium CVE-2022-23307 medium priority: Ubuntu including 1 source packages (apache-log4j1.2), 13 status rows across 13 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): not-affected 5, released 5, ignored 3. https://ubuntu.com/security/CVE-2022-23307

Affected software / configurations for CVE-2022-23307

Vendor Product Version Raw CPE
apache chainsaw < 2.1.0 cpe:2.3:a:apache:chainsaw:*:*:*:*:*:*:*:*
apache log4j >= 1.2, < 2.0 cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:*
qos reload4j < 1.2.18.1 cpe:2.3:a:qos:reload4j:*:*:*:*:*:*:*:*
oracle advanced_supply_chain_planning 12.1 cpe:2.3:a:oracle:advanced_supply_chain_planning:12.1:*:*:*:*:*:*:*
oracle advanced_supply_chain_planning 12.2 cpe:2.3:a:oracle:advanced_supply_chain_planning:12.2:*:*:*:*:*:*:*
oracle business_intelligence 5.9.0.0.0 cpe:2.3:a:oracle:business_intelligence:5.9.0.0.0:*:*:*:enterprise:*:*:*
oracle business_intelligence 12.2.1.3.0 cpe:2.3:a:oracle:business_intelligence:12.2.1.3.0:*:*:*:enterprise:*:*:*
oracle business_intelligence 12.2.1.4.0 cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0:*:*:*:enterprise:*:*:*
oracle business_process_management_suite 12.2.1.3.0 cpe:2.3:a:oracle:business_process_management_suite:12.2.1.3.0:*:*:*:*:*:*:*
oracle business_process_management_suite 12.2.1.4.0 cpe:2.3:a:oracle:business_process_management_suite:12.2.1.4.0:*:*:*:*:*:*:*
oracle communications_eagle_ftp_table_base_retrieval 4.5 cpe:2.3:a:oracle:communications_eagle_ftp_table_base_retrieval:4.5:*:*:*:*:*:*:*
oracle communications_instant_messaging_server 10.0.1.5.0 cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.5.0:*:*:*:*:*:*:*
oracle communications_messaging_server 8.1 cpe:2.3:a:oracle:communications_messaging_server:8.1:*:*:*:*:*:*:*
oracle communications_network_integrity 7.3.6 cpe:2.3:a:oracle:communications_network_integrity:7.3.6:*:*:*:*:*:*:*
oracle communications_offline_mediation_controller < 12.0.0.4.4 cpe:2.3:a:oracle:communications_offline_mediation_controller:*:*:*:*:*:*:*:*
oracle communications_offline_mediation_controller 12.0.0.5.0 cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.5.0:*:*:*:*:*:*:*
oracle communications_unified_inventory_management 7.4.1 cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.1:*:*:*:*:*:*:*
oracle communications_unified_inventory_management 7.4.2 cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.2:*:*:*:*:*:*:*
oracle e-business_suite_cloud_manager_and_cloud_backup_module < 2.2.1.1.1 cpe:2.3:a:oracle:e-business_suite_cloud_manager_and_cloud_backup_module:*:*:*:*:*:*:*:*
oracle e-business_suite_cloud_manager_and_cloud_backup_module 2.2.1.1.1 cpe:2.3:a:oracle:e-business_suite_cloud_manager_and_cloud_backup_module:2.2.1.1.1:*:*:*:*:*:*:*
oracle enterprise_manager_base_platform 13.4.0.0 cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:*
oracle enterprise_manager_base_platform 13.5.0.0 cpe:2.3:a:oracle:enterprise_manager_base_platform:13.5.0.0:*:*:*:*:*:*:*
oracle financial_services_revenue_management_and_billing_analytics 2.7.0.0 cpe:2.3:a:oracle:financial_services_revenue_management_and_billing_analytics:2.7.0.0:*:*:*:*:*:*:*
oracle financial_services_revenue_management_and_billing_analytics 2.7.0.1 cpe:2.3:a:oracle:financial_services_revenue_management_and_billing_analytics:2.7.0.1:*:*:*:*:*:*:*
oracle financial_services_revenue_management_and_billing_analytics 2.8.0.0 cpe:2.3:a:oracle:financial_services_revenue_management_and_billing_analytics:2.8.0.0:*:*:*:*:*:*:*
oracle healthcare_foundation 8.1.0 cpe:2.3:a:oracle:healthcare_foundation:8.1.0:*:*:*:*:*:*:*
oracle hyperion_data_relationship_management < 11.2.8.0 cpe:2.3:a:oracle:hyperion_data_relationship_management:*:*:*:*:*:*:*:*
oracle hyperion_infrastructure_technology < 11.2.8.0 cpe:2.3:a:oracle:hyperion_infrastructure_technology:*:*:*:*:*:*:*:*
oracle identity_management_suite 12.2.1.3.0 cpe:2.3:a:oracle:identity_management_suite:12.2.1.3.0:*:*:*:*:*:*:*
oracle identity_management_suite 12.2.1.4.0 cpe:2.3:a:oracle:identity_management_suite:12.2.1.4.0:*:*:*:*:*:*:*
oracle identity_manager_connector 11.1.1.5.0 cpe:2.3:a:oracle:identity_manager_connector:11.1.1.5.0:*:*:*:*:*:*:*
oracle jdeveloper 12.2.1.3.0 cpe:2.3:a:oracle:jdeveloper:12.2.1.3.0:*:*:*:*:*:*:*
oracle middleware_common_libraries_and_tools 12.2.1.4.0 cpe:2.3:a:oracle:middleware_common_libraries_and_tools:12.2.1.4.0:*:*:*:*:*:*:*
oracle mysql_enterprise_monitor <= 8.0.29 cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*
oracle retail_extract_transform_and_load 13.2.5 cpe:2.3:a:oracle:retail_extract_transform_and_load:13.2.5:*:*:*:*:*:*:*
oracle tuxedo 12.2.2.0.0 cpe:2.3:a:oracle:tuxedo:12.2.2.0.0:*:*:*:*:*:*:*
oracle weblogic_server 12.2.1.3.0 cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:*
oracle weblogic_server 12.2.1.4.0 cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:*
oracle weblogic_server 14.1.1.0.0 cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:*

References for CVE-2022-23307

cvelogic Threat Intelligence