How severe is CVE-2023-0021?

CVE-2023-0021 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-0021 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0021?

CVE-2023-0021 primarily affects Sap Netweaver. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-0021?

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

When was CVE-2023-0021 published?

CVE-2023-0021 was published on 2023-03-14 and last updated on 2026-06-17.

CVE-2023-0021

CVE-2023-0021 is a medium-severity vulnerability in Sap Netweaver with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sap Netweaver
Published: 2023-03-14
Last modified: 2026-06-17

Description

Due to insufficient encoding of user input, SAP NetWeaver - versions 700, 701, 702, 731, 740, 750, allows an unauthenticated attacker to inject code that may expose sensitive data like user ID and password, which could lead to reflected Cross-Site scripting. These endpoints are normally exposed over the network and successful exploitation can partially impact confidentiality of the application.

Frequently asked questions

What is CVE-2023-0021?: Due to insufficient encoding of user input, SAP NetWeaver - versions 700, 701, 702, 731, 740, 750, allows an unauthenticated attacker to inject code that may expose sensitive data like user ID and password, which could lead to reflected Cross-Site scripting. These endpoints are normally exposed over the network and successful exploitation can partially impact confidentiality of the application.
How severe is CVE-2023-0021?: CVE-2023-0021 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-0021 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0021?: CVE-2023-0021 primarily affects Sap Netweaver. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-0021?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0021 published?: CVE-2023-0021 was published on 2023-03-14 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:sap:netweaver:700:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:701:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:702:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:731:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:740:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:750:*:*:*:*:*:*:*

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