How severe is CVE-2025-42999?

CVE-2025-42999 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-42999 being actively exploited?

Yes. CVE-2025-42999 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-05-15, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2025-42999?

CVE-2025-42999 affects Sap Netweaver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-42999?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2025-42999 have an EU (EUVD) identifier?

Yes. CVE-2025-42999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14349. It is also flagged as exploited in the EUVD (since 2025-05-15).

When was CVE-2025-42999 published?

CVE-2025-42999 was published on 2025-05-13 and last updated on 2026-06-17.

CVE-2025-42999

CVE-2025-42999 is a critical-severity vulnerability in Sap Netweaver with a CVSS 3.x base score of 9.1. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-05-15). The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 11% (95th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-05-15)
EU (EUVD) id: EUVD-2025-14349
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-05-15)
Weakness: CWE-502
Affected product: Sap Netweaver
Published: 2025-05-13
Last modified: 2026-06-17

Description

SAP NetWeaver Visual Composer Metadata Uploader is vulnerable when a privileged user can upload untrusted or malicious content which, when deserialized, could potentially lead to a compromise of confidentiality, integrity, and availability of the host system.

Frequently asked questions

What is CVE-2025-42999?: SAP NetWeaver Visual Composer Metadata Uploader is vulnerable when a privileged user can upload untrusted or malicious content which, when deserialized, could potentially lead to a compromise of confidentiality, integrity, and availability of the host system.
How severe is CVE-2025-42999?: CVE-2025-42999 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-42999 being actively exploited?: Yes. CVE-2025-42999 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-05-15, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2025-42999?: CVE-2025-42999 affects Sap Netweaver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-42999?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2025-42999 have an EU (EUVD) identifier?: Yes. CVE-2025-42999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14349. It is also flagged as exploited in the EUVD (since 2025-05-15).
When was CVE-2025-42999 published?: CVE-2025-42999 was published on 2025-05-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sap:netweaver:7.5:*:*:*:*:*:*:*

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