CVE-2025-42966CWE-502

Insecure Deserialization vulnerability in SAP NetWeaver (XML Data Archiving Service)

Critical · published July 8, 2025

CVSS v3.1
9.1
EPSS
1%
Percentile
53.6
In the wild
Unconfirmed
What it is

🚨 A crafty serialized Java object is all it takes to exploit this vulnerability! If you have admin privileges on SAP NetWeaver, an insecure deserialization flaw could put your entire application at risk. 🔥 Think of it like a restaurant chef who receives an order slip with a secret recipe that nobody double-checks. If the chef just goes with it without confirming the details, the outcome could be disastrous for every dish served! An attacker could manipulate this flaw to compromise the confidentiality, integrity, and availability of your application, leading to potentially catastrophic data breaches or service outages. It's an all-you-can-eat buffet for anyone with malicious intent!

Put simply

Think of it like a restaurant chef who receives an order slip with a secret recipe that nobody double-checks. If the chef just goes with it without confirming the details, the outcome could be disastrous for every dish served! This vulnerability in the SAP NetWeaver XML Data Archiving Service allows an authenticated user with administrative privileges to exploit insecure Java deserialization, opening the door for unauthorized actions on the server side.

What to do

An attacker could manipulate this flaw to compromise the confidentiality, integrity, and availability of your application, leading to potentially catastrophic data breaches or service outages. It's an all-you-can-eat buffet for anyone with malicious intent! Immediate action is needed: upgrade to the latest version of SAP NetWeaver that addresses CVE-2025-42966. Additionally, review your administrative access controls to ensure that only trusted users have such privileges. It's time to tighten those security screws! You've got this! With these steps, you'll bolster your defenses in no time. 🛡️

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00726 · 53.6th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2025-07-08T00:36Z
EPSS history
Timeline
  • 08 JUL 00:36Z
    Insecure Deserialization vulnerability in SAP NetWeaver (XML Data Archiving Service)
    cvelistv5