CVE-2025-42999

SAP — SAP NetWeaver Deserialization Vulnerability

CISA KEV · in the CISA KEV catalog since 2025-05-15

What EVULNABLE says

EVULNABLE Risk · priority 85/100 Immediate Raised to the floor for a confirmed exploited vulnerability. Intelligence coverage 75/90 — no pre-patch disclosure data
ExigentOverdue by 15 monthsRansomwareCISA KEVActively Exploited

Why it matters: Listed in the CISA KEV catalog, and Confirmed exploitation in the wild.

Out-of-Band / Urgent Remediation

The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.

The evidence behind it

Published measurements for CVE-2025-42999
MeasureValueSource
CVSS base score 9.1 NVD
FIRST EPSS 0.139 (96.3rd pctl) FIRST
Actively exploited Confirmed CISA KEV
Ransomware campaign use Known CISA KEV
CISA remediation deadline 2025-06-05 — Overdue by 15 months CISA KEV
Intelligence coverage 75/90 — no pre-patch disclosure data

What CISA says to do

This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.