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VulnerabilityPublished Updated

CVE-2025-42964: SAP NetWeaver Enterprise Portal Administration · Deserialization of Untrusted Data

Affects SAP NetWeaver Enterprise Portal AdministrationSource CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

To mitigate CVE-2025-42964, organizations should immediately apply any available SAP patches or updates addressing this vulnerability once released. In the absence of patches, restrict privileged user access to only trusted personnel and enforce strict role-based access controls to minimize the risk of malicious uploads. Implement rigorous monitoring and auditing of privileged user activities, especially file uploads and deserialization processes. Employ application-layer filtering or sandboxing to validate and isolate uploaded serialized content before deserialization. Consider deploying runtime application self-protection (RASP) or web application firewalls (WAF) with custom rules to detect and block suspicious deserialization patterns. Additionally, conduct regular security training for administrators to recognize and avoid risky behaviors. Finally, maintain comprehensive backups and incident response plans to quickly recover from potential exploitation.

Description

SAP NetWeaver Enterprise Portal Administration 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.

References

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