Unauthenticated RCE in SAP Web Dispatcher (widely deployed enterprise ERP component) with CVSS 10.0; full system compromise risk that affects many organizations.
CVE-2026-89126
Unauthenticated RCE in SAP Web Dispatcher allowing full system compromise.
Is CVE-2026-89126 being exploited?
Not confirmed. CVE-2026-89126 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-89126?
CVE-2026-89126 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-89126?
Yes. A fix has been recorded for CVE-2026-89126. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-89126 affect?
CVE-2026-89126 affects SAP Web Dispatcher, SAP NetWeaver-based systems, Front-end SAP servers behind Web Dispatcher. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-89126?
Apply SAP note 3778556 / vendor patches immediately; restrict access to Web Dispatcher.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution via crafted network traffic; attacker can execute arbitrary code and fully compromise confidentiality, integrity, and availability.
Immediate action required
- affectedHDB 2.00
- affectedKRNL64UC 7.53
- affectedWEBDISP 7.53
- affected7.54
- affected7.77
- affected7.93
- affected9.16
- affectedXS_ADVANCED_RUNTIME 1.00
- affectedSAP_EXTENDED_APP_SERVICES 1
- affectedKERNEL 7.53
- affected9.18
- affected9.20
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
timeline
- 10 Nov 2026Published
- 10 Nov 2026CVE record last updated · same day later
- 10 Nov 2026Analysed by vulneraibility.com · same day later
- Linkme.sap.com /notes/3778556
- Linkurl.sap /sapsecuritypatchday
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.