CVE-2025-42999
CriticalExploitedPublic exploitSAP 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.
Published May 12, 2025 · Updated Aug 11, 2026
Key Facts
Patch immediately- CVE-2025-42999 is a critical-severity vulnerability (CVSS 9.1 v3.1) affecting Netweaver (Sap), SAP NetWeaver (Visual Composer development server).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 27, 2025 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 13% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
13%
Higher than 96.2% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2025-42999 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | May 15, 2025 | Jun 5, 2025 | Known |
| Industry KEV feed | Apr 27, 2025 | Jun 5, 2025 | Known |
| CIRCL KEV | May 15, 2025 | Jun 5, 2025 | Not reported |
| ENISA EUVD | May 15, 2025 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| NetweaverSap | 7.5 | n/a |
| SAP NetWeaver (Visual Composer development server) | >= VCFRAMEWORK 7.50 | n/a |
Timeline
Added to Industry KEV feed
Apr 27, 2025
Publicly disclosed
May 12, 2025
Added to CISA KEV
May 15, 2025
Added to CIRCL KEV
May 15, 2025
Added to ENISA EUVD
May 15, 2025
Last updated
Aug 11, 2026
Weakness Type
- CWE-502 Deserialization of Untrusted Data
References
- advisoryhttps://url.sap/sapsecuritypatchday
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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.
Affected: Netweaver (Sap) versions 7.5; SAP NetWeaver (Visual Composer development server) versions >= VCFRAMEWORK 7.50. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 27, 2025 and is known to be used in ransomware campaigns.
Yes. It was added on May 15, 2025 with a federal remediation due date of Jun 5, 2025.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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