---
title: "CVE-2025-31324: SAP NetWeaver Unrestricted File Upload Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-31324/
description: "CVE-2025-31324 (SAP NetWeaver): Exploited in the wild (CISA KEV). SAP NetWeaver Visual Composer Metadata Uploader is not protected with a proper…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-04-24
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-31324"
kev: true
cvss: 10
epss: 0.99486
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-31324: SAP NetWeaver Unrestricted File Upload Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run SAP NetWeaver. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-04-29, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-05-20 ; treat that as the outer limit, not the target. CISA also lists it as known to be used in ransomware campaigns .
- EPSS 99.5% , percentile 99.9: FIRST’s model estimates a 99.5% chance of exploitation activity in the next 30 days, higher than 99.9% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Check exposure. SAP NetWeaver Visual Composer: Unauthenticated Upload RCE — Patches have existed since April and May 2025, but this was a mass-exploited zero-day used by ransomware crews, so every SAP Java shop should confirm the fix and hunt for leftover webshells.

## What it is

SAP NetWeaver Visual Composer Metadata Uploader is not protected with a proper authorization, allowing unauthenticated agent to upload potentially malicious executable binaries that could severely harm the host system. This could significantly affect the confidentiality, integrity, and availability of the targeted system.

## Affected products (CVE record)

- SAP_SE SAP NetWeaver (Visual Composer development server): VCFRAMEWORK 7.50

## Severity

- sap CVSS 3.1: 10 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2025-04-29; federal due date 2025-05-20. Known ransomware use: Known.
- CISA 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.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 99.49% probability of exploitation activity in the next 30 days; percentile 99.9.

## Sources

- [Listed in CISA KEV notes (me.sap.com)](https://me.sap.com/notes/3594142)
- [CVE.org record CVE-2025-31324](https://www.cve.org/CVERecord?id=CVE-2025-31324)
- [NVD entry CVE-2025-31324](https://nvd.nist.gov/vuln/detail/CVE-2025-31324)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31324)
- [url.sap](https://url.sap/sapsecuritypatchday)
- [onapsis.com](https://onapsis.com/blog/active-exploitation-of-sap-vulnerability-cve-2025-31324/)
- [theregister.com](https://www.theregister.com/2025/04/25/sap_netweaver_patch/)
- [bleepingcomputer.com](https://www.bleepingcomputer.com/news/security/sap-fixes-suspected-netweaver-zero-day-exploited-in-attacks/)

---
Source page: https://erroneo.us/security/cve/CVE-2025-31324/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt