How severe is CVE-2020-17530?

CVE-2020-17530 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-17530 being actively exploited?

Yes. CVE-2020-17530 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-17530?

CVE-2020-17530 primarily affects Apache Struts. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-17530?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-17530 have an EU (EUVD) identifier?

Yes. CVE-2020-17530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-1073. It is also flagged as exploited in the EUVD (since 2021-11-03).

When was CVE-2020-17530 published?

CVE-2020-17530 was published on 2020-12-11 and last updated on 2026-06-17.

CVE-2020-17530

CVE-2020-17530 is a critical-severity vulnerability in Apache Struts with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-917.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 96% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
EU (EUVD) id: EUVD-2022-1073
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
Weakness: CWE-917
Affected product: Apache Struts
Published: 2020-12-11
Last modified: 2026-06-17

Description

Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.

Frequently asked questions

What is CVE-2020-17530?: Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.
How severe is CVE-2020-17530?: CVE-2020-17530 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-17530 being actively exploited?: Yes. CVE-2020-17530 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-17530?: CVE-2020-17530 primarily affects Apache Struts. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-17530?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-17530 have an EU (EUVD) identifier?: Yes. CVE-2020-17530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-1073. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2020-17530 published?: CVE-2020-17530 was published on 2020-12-11 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:business_intelligence:12.2.1.3.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:communications_diameter_intelligence_hub:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_diameter_intelligence_hub:8.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_diameter_intelligence_hub:8.2.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_diameter_intelligence_hub:8.2.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_policy_management:12.5.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:financial_services_data_integration_hub:8.0.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:financial_services_data_integration_hub:8.0.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_opera_5:5.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_enterprise_monitor:8.0.23:*:*:*:*:*:*:*

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