How severe is CVE-2023-42477?

CVE-2023-42477 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-42477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-42477?

CVE-2023-42477 affects Sap Netweaver Application Server Java. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-42477?

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

When was CVE-2023-42477 published?

CVE-2023-42477 was published on 2023-10-10 and last updated on 2026-06-17.

CVE-2023-42477

CVE-2023-42477 is a medium-severity vulnerability in Sap Netweaver Application Server Java 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Sap Netweaver Application Server Java
Published: 2023-10-10
Last modified: 2026-06-17

Description

SAP NetWeaver AS Java (GRMG Heartbeat application) - version 7.50, allows an attacker to send a crafted request from a vulnerable web application, causing limited impact on confidentiality and integrity of the application.

Frequently asked questions

What is CVE-2023-42477?: SAP NetWeaver AS Java (GRMG Heartbeat application) - version 7.50, allows an attacker to send a crafted request from a vulnerable web application, causing limited impact on confidentiality and integrity of the application.
How severe is CVE-2023-42477?: CVE-2023-42477 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-42477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-42477?: CVE-2023-42477 affects Sap Netweaver Application Server Java. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-42477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-42477 published?: CVE-2023-42477 was published on 2023-10-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sap:netweaver_application_server_java:7.50:*:*:*:*:*:*:*

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