How severe is CVE-2021-27604?

CVE-2021-27604 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-27604 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27604?

CVE-2021-27604 primarily affects Sap Netweaver Process Integration. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-27604?

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

When was CVE-2021-27604 published?

CVE-2021-27604 was published on 2021-04-14 and last updated on 2026-06-17.

CVE-2021-27604

CVE-2021-27604 is a medium-severity vulnerability in Sap Netweaver Process Integration with a CVSS 3.x base score of 6.5. 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-611.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Sap Netweaver Process Integration
Published: 2021-04-14
Last modified: 2026-06-17

Description

In order to prevent XML External Entity vulnerability in SAP NetWeaver ABAP Server and ABAP Platform (Process Integration - Enterprise Service Repository JAVA Mappings), versions - 7.10, 7.20, 7.30, 7.31, 7.40, 7.50, SAP recommends to refer this note.

Frequently asked questions

What is CVE-2021-27604?: In order to prevent XML External Entity vulnerability in SAP NetWeaver ABAP Server and ABAP Platform (Process Integration - Enterprise Service Repository JAVA Mappings), versions - 7.10, 7.20, 7.30, 7.31, 7.40, 7.50, SAP recommends to refer this note.
How severe is CVE-2021-27604?: CVE-2021-27604 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-27604 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27604?: CVE-2021-27604 primarily affects Sap Netweaver Process Integration. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-27604?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27604 published?: CVE-2021-27604 was published on 2021-04-14 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:sap:netweaver_process_integration:7.10:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_process_integration:7.20:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_process_integration:7.30:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_process_integration:7.31:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_process_integration:7.40:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_process_integration:7.50:*:*:*:*:*:*:*

More vulnerabilities in Sap Netweaver Process Integration

CVE-2022-41272 — Critical (CVSS 9.9): An unauthenticated attacker over the network can attach to an open interface exposed through JNDI by the User Defined…
CVE-2022-41271 — Critical (CVSS 9.4): An unauthenticated user can attach to an open interface exposed through JNDI by the Messaging System of SAP NetWeaver…
CVE-2019-0315 — High (CVSS 7.5): Under certain conditions the PI Integration Builder Web UI of SAP NetWeaver Process Integration (versions: SAP_XIESR:…
CVE-2019-0328 — High (CVSS 7.2): ABAP Tests Modules (SAP Basis, versions 7.0, 7.1, 7.3, 7.31, 7.4, 7.5) of SAP NetWeaver Process Integration enables an…
CVE-2019-0283 — High (CVSS 7.1): SAP NetWeaver Process Integration (Adapter Engine), fixed in versions 7.10 to 7.11, 7.30, 7.31, 7.40, 7.50; is…
CVE-2023-35873 — Medium (CVSS 6.5): The Runtime Workbench (RWB) of SAP NetWeaver Process Integration - version SAP_XITOOL 7.50, does not perform…

All CVEs affecting Sap Netweaver Process Integration →

Other CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

CVE-2022-22486 — Critical (CVSS 10.0): IBM Tivoli Workload Scheduler 9.4, 9.5, and 10.1 is vulnerable to an XML External Entity Injection (XXE) attack when…
CVE-2019-14678 — Critical (CVSS 10.0): SAS XML Mapper 9.45 has an XML External Entity (XXE) vulnerability that can be leveraged by malicious attackers in…
CVE-2015-9280 — Critical (CVSS 10.0): MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter.
CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
CVE-2018-1000835 — Critical (CVSS 10.0): KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can…

Browse all CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities →