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Full vulnerability report · 2025
CVE-2025-42999High confidence

SAP NetWeaver Deserialization Vulnerability

SAP · NetWeaver

9.1CriticalCVSS 3.1
Recommended action
Protect now

CISA confirms exploitation in the wild and lists 2025-06-05 as the remediation due date.

Fix not verified
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2025-14349

CISA KEV mirrored by ENISA

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.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 15 May 2025. Evidence sources: cisa_kev.
ENISA score
9.1 · CVSS 3.1
Advisory evidence
2 linked advisory records
Explicit mitigation evidence

Only statements that explicitly mention a fix, patch, update, workaround or mitigation are shown here.

  • csaf_ncscnl · NCSC-2025-0149Kwetsbaarheden verholpen in SAP producten
Recommended actionProtect now

CISA confirms exploitation in the wild and lists 2025-06-05 as the remediation due date.

Fix not verified
01

What, why and how

SAP NetWeaver Visual Composer Metadata Uploader contains a deserialization vulnerability that allows a privileged attacker to compromise the confidentiality, integrity, and availability of the host system by deserializing untrusted or malicious content.

What

SAP NetWeaver Visual Composer Metadata Uploader contains a deserialization vulnerability that allows a privileged attacker to compromise the confidentiality, integrity, and availability of the host system by deserializing untrusted or malicious content.

Why

Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

SAP NetWeaver Visual Composer Metadata Uploader contains a deserialization vulnerability that allows a privileged attacker to compromise the confidentiality, integrity, and availability of the host system by deserializing untrusted or malicious content.

Why

Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2025-05-15. Known ransomware campaign use is recorded.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Deserialization of Untrusted Data → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
High: elevated access is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-502 ↗

CWE-502: Deserialization of Untrusted Data. The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkCWE-502CISA KEVPublic exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2025-14349Known-exploited evidence recorded

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.

Official EUVD record
BSI · German · WID-SEC-W-2025-1002SAP Patchday Mai 2025: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in SAP Software ausnutzen, um erweiterte Rechte zu erlangen, beliebigen Code auszuführen, Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen preiszugeben, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren und einen Denial-of-Service-Zustand zu verursachen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0396Multiples vulnérabilités dans les produits SAP

d?id=CVE-2025-26662 Référence CVE CVE-2025-30009 https://www.cve.org/CVERecord?id=CVE-2025-30009 Référence CVE CVE-2025-30010 https://www.cve.org/CVERecord?id=CVE-2025-30010 Référence CVE CVE-2025-30011 https://www.cve.org/CVERecord?id=CVE-2025-30011 Référence CVE CVE-2025-30012 https://www.cve.org/CVERecord?id=CVE-2025-30012 Référence CVE CVE-2025-30018 https://www.cve.org/CVERecord?id=CVE-2025-30018 Référence CVE CVE-2025-31324 https://www.cve.org/CVERecord?id=CVE-2025-31324 Référence CVE CVE-2025-31329 https://www.cve.org/CVERecord?id=CVE-2025-31329 Référence CVE CVE-2025-42997 https://www.cve.org/CVERecord?id=CVE-2025-42997 Référence CVE CVE-2025-42999 https://www.cve.org/CVERecord?id=CVE-2025-42999 Référence CVE CVE-2025-43000 https://www.cve.org/CVERecord?id=CVE-2025-43000 Référence CVE CVE-2025-43002 https://www.cve.org/CVERecord?id=CVE-2025-43002 Référence CVE CVE-2025-43003 https://www.cve.org/CVERecord?id=CVE-2025-43003 Référence CVE CVE-2025-43004 https://www.cve.org/CVERecord?id=CVE-2025-43004 Référence CVE CVE-2025-43005 https://www.cve.org/CVERecord?id=CVE-2025-43005 Référence CVE CVE-2025-43006 https://www.cve.org/CVERecord?id=CVE-2025-43006 Référence CVE CVE-2025-43007 https://www.cve.org/CVERecord?id=CVE-2025-43007 Référence CVE CVE-2025-43008 https://www.cve.org/CVERecord?id=

Official advisory
NCSC-NL · Dutch · NCSC-2025-0149Kwetsbaarheden verholpen in SAP producten

De kwetsbaarheden omvatten onder andere een onbeperkte bestandsuploadfout die ongeauthenticeerde gebruikers in staat stelt om kwaadaardige bestanden te uploaden, wat kan leiden tot uitvoer van willekeurige code. Daarnaast zijn er kwetsbaarheden gerapporteerd die voortkomen uit het ontbreken van noodzakelijke autorisatiecontroles, wat kan resulteren in ongeoorloofde toegang tot gevoelige gegevens en privilege-escalatie. SAP brengt de kwetsbaarheid met kenmerk CVE-2025-31324 opnieuw onder de aandacht. Deze kwetsbaarheid bevindt zich in de NetWeaver Visual Component en is in de maandelijkse update van april verholpen. Deze kwetsbaarheid is echter als ZeroDay actief misbruikt.

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
VCFRAMEWORK 7.50
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 13 May 2025 · Last source change 11 Aug 2026, 03:55 UTC · CWE-502 · Deserialization of Untrusted Data

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2025-14349
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
ENISA EUVD · EUVD-2025-14349↗CISA KEV record↗Vendor advisory↗CVE authority or vendor reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2025-42999 · cve.blacktree.nl