How severe is CVE-2021-27621?

CVE-2021-27621 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-27621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27621?

CVE-2021-27621 primarily affects Sap Netweaver Application Server For 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-2021-27621?

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

When was CVE-2021-27621 published?

CVE-2021-27621 was published on 2021-06-09 and last updated on 2026-06-17.

CVE-2021-27621

CVE-2021-27621 is a medium-severity vulnerability in Sap Netweaver Application Server For Java with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sap Netweaver Application Server For Java
Published: 2021-06-09
Last modified: 2026-06-17

Description

Information Disclosure vulnerability in UserAdmin application in SAP NetWeaver Application Server for Java, versions - 7.11,7.20,7.30,7.31,7.40 and 7.50 allows attackers to access restricted information by entering malicious server name.

Frequently asked questions

What is CVE-2021-27621?: Information Disclosure vulnerability in UserAdmin application in SAP NetWeaver Application Server for Java, versions - 7.11,7.20,7.30,7.31,7.40 and 7.50 allows attackers to access restricted information by entering malicious server name.
How severe is CVE-2021-27621?: CVE-2021-27621 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-27621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27621?: CVE-2021-27621 primarily affects Sap Netweaver Application Server For 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-2021-27621?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27621 published?: CVE-2021-27621 was published on 2021-06-09 and last updated on 2026-06-17.

References

Affected products (6)

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

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