CVE-2025-42999
Confirmed PUBLISHEDInsecure Deserialization in SAP NetWeaver (Visual Composer development server)
1 day faster than CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- May 13, 2025
- Exploitation Reported
- Jun 01, 2026
- CVSS
- 9.1 Critical
- EPSS
- 11.2%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| SAP_SE |
SAP NetWeaver (Visual Composer development server)
|
VCFRAMEWORK 7.50 |
Affected |
CVE References
- me.sap.com/notes/3604119 me.sap.com · CVE Record https://me.sap.com/notes/3604119
- url.sap/sapsecuritypatchday url.sap · CVE Record https://url.sap/sapsecuritypatchday
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 10:37 UTC |
| CISA | 2026-06-02 14:07 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2026-06-01 10:37:52 UTC · CVE
Weaknesses (CWE)
-
Deserialization of Untrusted Data
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:07 UTC about 2 months ago14:07 UTC · about 2 months ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
10:37 UTC about 2 months ago10:37 UTC · about 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
00:17 UTC about 1 year ago00:17 UTC · about 1 year ago
CVE published
Vulnerability disclosed publicly
-
13:25 UTC over 1 year ago13:25 UTC · over 1 year ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2025-42999
{
"cve_id": "CVE-2025-42999",
"title": "Insecure Deserialization in SAP NetWeaver (Visual Composer development server)",
"affected_vendor": "SAP_SE",
"affected_product": "SAP NetWeaver (Visual Composer development server)",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.1,
"epss_score": 0.11222,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}