CVE-2025-42944Network attack vector

Unauthenticated OS command execution via RMI-P4 deserialization

Published Sep 9, 2025 · Updated Feb 26, 2026

Insecure deserialization in SAP NetWeaver AS Java SERVERCORE 7.50 allows remote attackers to execute OS commands through an open RMI-P4 port. The RMI-P4 module passes attacker-supplied Java objects received on the port into deserialization, allowing object behavior to reach OS command execution. No credentials or user interaction are required; a reachable P4 listener permits compromise of application data and service availability.

CVSS severity10.0
Critical
EPSS probability2.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in SAP NetWeaver AS Java SERVERCORE 7.50 allows remote attackers to execute OS commands through an open RMI-P4 port. The RMI-P4 module passes attacker-supplied Java objects received on the port into deserialization, allowing object behavior to reach OS command execution. No credentials or user interaction are required; a reachable P4 listener permits compromise of application data and service availability.

The record

CVE
CVE-2025-42944
Published
Sep 9, 2025
Updated
Feb 26, 2026
Vendor
SAP SE
Product
SAP NetWeaver
Classifications
CWE-502, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=SERVERCORE 7.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SAP SE · SAP NetWeaverversion=SERVERCORE 7.50

Published CVSS scores

10.0SAP SECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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