SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated user to send a specially crafted packet that triggers reprocessing of a previously buffered user request, potentially hijacking another user's session under narrow timing conditions. Successful exploitation could result in high impact on confidentiality and integrity, with low impact on availability of the application.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
SAP_SE SAP NetWeaver Application Server for ABAP and ABAP Platform unaffected
Version Status Constraints
KRNL64NUC 7.22 affected —
7.22EXT affected —
KRNL64UC 7.22 affected —
7.53 affected —
8.04 affected —
KERNEL 7.22 affected —
7.54 affected —
7.77 affected —
7.93 affected —
9.16 affected —
9.18 affected —
9.19 affected —
9.20 affected —

No data.

No data.

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No data.

Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://me.sap.com/notes/3757002 cve-icon cve-icon
https://url.sap/sapsecuritypatchday cve-icon cve-icon
History

Tue, 08 Sep 2026 00:45:00 +0000

Type Values Removed Values Added
Description SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated user to send a specially crafted packet that triggers reprocessing of a previously buffered user request, potentially hijacking another user's session under narrow timing conditions. Successful exploitation could result in high impact on confidentiality and integrity, with low impact on availability of the application.
Title Memory Corruption vulnerability in SAP NetWeaver Application Server for ABAP and ABAP Platform
Weaknesses CWE-191
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: sap

Published:

Updated: 2026-09-08T00:11:06.906Z

Reserved: 2026-07-27T17:33:40.733Z

Link: CVE-2026-66767

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-08T01:17:51.987

Modified: 2026-09-08T01:17:51.987

Link: CVE-2026-66767

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T01:30:06Z

Weaknesses