How severe is CVE-2021-37535?

CVE-2021-37535 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-2021-37535 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37535?

CVE-2021-37535 primarily affects Sap Netweaver Application Server Java. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37535?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-37535 published?

CVE-2021-37535 was published on 2021-09-14 and last updated on 2026-06-17.

CVE-2021-37535

CVE-2021-37535 is a critical-severity vulnerability in Sap Netweaver Application Server Java with a CVSS 3.x base score of 9.8. 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-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Sap Netweaver Application Server Java
Published: 2021-09-14
Last modified: 2026-06-17

Description

SAP NetWeaver Application Server Java (JMS Connector Service) - versions 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not perform necessary authorization checks for user privileges.

Frequently asked questions

What is CVE-2021-37535?: SAP NetWeaver Application Server Java (JMS Connector Service) - versions 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not perform necessary authorization checks for user privileges.
How severe is CVE-2021-37535?: CVE-2021-37535 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-2021-37535 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37535?: CVE-2021-37535 primarily affects Sap Netweaver Application Server Java. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37535?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-37535 published?: CVE-2021-37535 was published on 2021-09-14 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:sap:netweaver_application_server_java:7.11:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:7.20:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:7.30:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:7.31:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:7.40:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:7.50:*:*:*:*:*:*:*

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