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Back to active CVEs
Critical · CVSS 9.0CVE-2026-66768

Improper Access Control in SAP NetWeaver (SAP GUI for Java)CVE-2026-66768

Answer in brief

CVE-2026-66768 records a Critical severity (CVSS 9.0) vulnerability in Improper Access Control in SAP NetWeaver (SAP GUI for Java). The current sources do not mark it as known exploited. The current feed maps SAP_SE/SAP NetWeaver (SAP GUI for Java) (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 8, 2026Updated Sep 9, 2026Source checked Oct 23, 2026First seen by HOL Sep 8, 2026Material review Sep 9, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.0
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps SAP_SE/SAP NetWeaver (SAP GUI for Java) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
SAP_SE/SAP NetWeaver (SAP GUI for Java)genericBC-FES-JAV 8.10Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for SAP_SE/SAP NetWeaver (SAP GUI for Java).
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 8, 2026

Sources and claim methodology

  • Source referenceme.sap.com
  • Source referenceurl.sap
Upstream source description

SAP GUI for Java does not correctly enforce the trust level policy for certain functions invoked from a connected backend system. A low-privileged attacker could exploit this weakness by manipulating a connected backend system to trigger affected functionality. This could allow arbitrary command execution on the victim's machine, leading to a high impact on the confidentiality, integrity, and availability of the affected system.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Authlib: ID token can disable its own nonce validation via the nonce_supported claimAlso CWE-807

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-807
Source
CVE List V5
Source checked
Oct 23, 2026
References
2 linked sources
Open source record