SAP Patches Critical Flaws in NetWeaver, EPP Library
NCSC-NL advisory details multiple SAP vulnerabilities, including a CVSS 10.0 unauthenticated memory corruption in the EPP processing library and a 9.8 auth-bypass in NetWeaver Message Server.
Sourceadvisories.ncsc.nl — open the original
What to check
- Applies to
- The 11 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
NCSC-NL published an advisory covering a batch of SAP vulnerabilities patched across numerous products including the SAP Extended Passport Protocol (EPP) processing library, SAP NetWeaver Message Server, @sap/cds-mtxs NPM library, SAP GUI for Java, SAP ABAP Development Tools, SAP Integration Suite, SAP NetWeaver Business Client, SAP Web Dispatcher, Internet Communication Manager, SAP Content Server, SAP S/4HANA Intercompany Matching and Reconciliation, and SAP Manufacturing Integration and Intelligence. The most severe issue, CVE-2026-44756 (CVSS 10.0), is an unauthenticated memory-safety flaw in the EPP processing library triggerable via malformed EPP headers, potentially impacting confidentiality, integrity, and availability. CVE-2026-58240 (CVSS 9.8) allows unauthenticated network attackers to register unauthorized components in the NetWeaver Message Server environment due to missing authentication on internal application server component registration, enabling full system compromise. CVE-2026-76969 (CVSS 9.4) exposes sensitive credentials in multitenant CAP applications, permitting unauthorized tenant data access and manipulation. CVE-2026-66768 (CVSS 9.0) lets a low-privileged attacker execute arbitrary commands in SAP GUI for Java due to improper enforcement of trust level policies.
Mentioned in this report
Source reporting: https://advisories.ncsc.nl/2026/ncsc-2026-0356.html
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,436 reports from 149 sources, 661 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs