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.
do firstApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Can a WAF block it? Partly. Cloudflare publishes WAF a rule written for this CVE. Such rules block the known exploit requests and buy time, but attackers can change the request to get past them, so they do not replace the patch.
Cloudflare · 1 rule (Block) · since 9 Jun 2025
- SAP NetWeaver - Remote Code Execution - CVE:CVE-2025-42999 · Cloudflare Managed Ruleset
Also consider: patch · enable the vendor rule in block mode · allow-list classes
Based on WAF vendor rules published for this CVE. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Is CVE-2025-42999 being exploited?
Yes. CVE-2025-42999 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2025-42999?
CVE-2025-42999 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-42999?
Yes. A fix has been recorded for CVE-2025-42999. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-42999 affect?
CVE-2025-42999 affects sap:netweaver. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
- affectedVCFRAMEWORK 7.50
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
cisa ssvc
- exploitation
- active
- automatable
- no
- technical impact
- total
Assessed by CISA 12 May 2025 (SSVC 2.0.3).
timeline
- 12 May 2025CISA SSVC assessment: exploitation active
- 13 May 2025Published · 1 day later
- 15 May 2025Added to CISA KEV (exploited in the wild) · 2 days later
- 5 Jun 2025CISA remediation due date (US federal agencies) · 21 days later
- 11 Aug 2026CVE record last updated · 432 days (about 1 year) later
- 2 Nov 2026Analysed by vulneraibility.com · 84 days (about 3 months) later
- Linkme.sap.com /notes/3604119
- Linkurl.sap /sapsecuritypatchday
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-42999
- Linkonapsis.com /blog/active-exploitation-of-sap-vulnerability-cve-2025-31324/
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.