Skip to content
EXYS
Back to the CVEs

CVE-2025-42999

9.1, critical Known exploited Used in ransomware

SAP NetWeaver Deserialization Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
9.1, critical critical CVSS v3.1
EPSS, next 30 days
13% higher than 96.2% of scored CVEs
Exploitation
Confirmed in the wild
Published
13 May 2025a year ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 15 May 2025 and links it to ransomware activity. US federal agencies had to remediate by 5 Jun 2025, a deadline that has passed.

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.

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.

Details

Vendor
SAP
Product
SAP NetWeaver (Visual Composer development server)
Weakness
CWE-502 (opens in a new tab)
Status
Analyzed
Updated
11 Aug 2026
Assigner
cna@sap.com

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References 4

Exploit code 1

Patches and fixes 1

Other references 2

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other SAP CVEs

Every SAP CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2025-31324 SAP NetWeaver Unrestricted File Upload Vulnerability KEV EPSS 99% 9.8, critical
  • CVE-2022-22536 SAP Multiple Products HTTP Request Smuggling Vulnerability KEV EPSS 98% 10, critical
  • CVE-2021-38163 SAP NetWeaver Unrestricted File Upload Vulnerability KEV EPSS 37% 8.8, high
  • CVE-2020-6287 SAP NetWeaver Missing Authentication for Critical Function Vulnerability KEV EPSS 95% 10, critical
  • CVE-2020-6207 SAP Solution Manager Missing Authentication for Critical Function Vulnerability KEV EPSS 98% 9.8, critical
  • CVE-2019-0344 SAP Commerce Cloud Deserialization of Untrusted Data Vulnerability KEV EPSS 7% 9.8, critical
  • CVE-2018-2380 SAP Customer Relationship Management (CRM) Path Traversal Vulnerability KEV EPSS 29% 6.6, medium
  • CVE-2017-12637 SAP NetWeaver Directory Traversal Vulnerability KEV EPSS 95% 7.5, high

Beyond this page

Is CVE-2025-42999 in your network?

This page tells you how dangerous CVE-2025-42999 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2025-42999 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2025-42999 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.