How severe is CVE-2021-36374?

CVE-2021-36374 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-36374 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36374?

CVE-2021-36374 primarily affects Apache Ant. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-36374?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-36374 published?

CVE-2021-36374 was published on 2021-07-14 and last updated on 2026-06-17.

CVE-2021-36374

CVE-2021-36374 is a medium-severity vulnerability in Apache Ant with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-130.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-130
Affected product: Apache Ant
Published: 2021-07-14
Last modified: 2026-06-17

Description

When reading a specially crafted ZIP archive, or a derived formats, an Apache Ant build can be made to allocate large amounts of memory that leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Commonly used derived formats from ZIP archives are for instance JAR files and many office files. Apache Ant prior to 1.9.16 and 1.10.11 were affected.

Frequently asked questions

What is CVE-2021-36374?: When reading a specially crafted ZIP archive, or a derived formats, an Apache Ant build can be made to allocate large amounts of memory that leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Commonly used derived formats from ZIP archives are for instance JAR files and many office files. Apache Ant prior to 1.9.16 and 1.10.11 were affected.
How severe is CVE-2021-36374?: CVE-2021-36374 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-36374 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36374?: CVE-2021-36374 primarily affects Apache Ant. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-36374?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36374 published?: CVE-2021-36374 was published on 2021-07-14 and last updated on 2026-06-17.

References

Affected products (74)

cpe:2.3:a:apache:ant:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_trade_finance:14.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_treasury_management:14.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.11.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_order_and_service_management:7.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_order_and_service_management:7.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_unified_inventory_management:7.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_unified_inventory_management:7.5.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_repository:11.1.1.7.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:health_sciences_information_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:health_sciences_information_manager:3.0.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:insurance_policy_administration:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:18.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:19.12:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_unifier:20.12:*:*:*:*:*:*:*
cpe:2.3:a:oracle:product_lifecycle_analytics:3.6.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:real-time_decision_server:3.2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:real-time_decision_server:11.1.1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_advanced_inventory_planning:14.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_advanced_inventory_planning:15.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_advanced_inventory_planning:16.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_back_office:14.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_back_office:14.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_bulk_data_integration:16.0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_bulk_data_integration:19.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_central_office:14.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_central_office:14.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_eftlink:19.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_eftlink:20.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_extract_transform_and_load:13.2.8:*:*:*:*:*:*:*

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