dbcve.org
Netweaver Application Server AbapApplication · Sap

CVE-2023-41366

MEDIUM · 5.3 CVSS v3.1 Published 2023-11-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
62/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Under certain condition SAP NetWeaver Application Server ABAP - versions KERNEL 722, KERNEL 7.53, KERNEL 7.77, KERNEL 7.85, KERNEL 7.89, KERNEL 7.54, KERNEL 7.91, KERNEL 7.92, KERNEL 7.93, KERNEL 7.94, KERNEL64UC 7.22, KERNEL64UC 7.22EXT, KERNEL64UC 7.53, KERNEL64NUC 7.22, KERNEL64NUC 7.22EXT, allows an unauthenticated attacker to access the unintended data due to the lack of restrictions applied which may lead to low impact in confidentiality and no impact on the integrity and availability of the application.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

SAP NetWeaver Application Server ABAP contains a missing authorization control that allows unauthenticated attackers to access data they should not be able to view. The vulnerability affects multiple kernel versions and results from a lack of proper restrictions being applied under certain conditions.

MitigationApply the relevant SAP security patches for the affected kernel versions. Until patches are available, implement network-level restrictions to limit exposure of the SAP services to unauthorized network segments.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Netweaver Application Server AbapApplication
Affected:= kernel_7.22= kernel_7.53= kernel_7.54= kernel_7.77= kernel_7.85= kernel_7.89= kernel_7.91= kernel_7.92= kernel_7.93= kernel_7.94= kernel64nuc_7.22= kernel64nuc_7.22ext

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the SAP NetWeaver ABAP kernel version
    Determine the kernel version of your SAP NetWeaver Application Server ABAP installation. Use SAP transaction SM51 to display the kernel release, or check the kernel version via the SAPMMC or command line tools available in your environment.
    Affected if The installed kernel version matches one of the affected versions: kernel_7.22, kernel_7.53, kernel_7.54, kernel_7.77, kernel_7.85, kernel_7.89, kernel_7.91, kernel_7.92, kernel_7.93, kernel_7.94, kernel64nuc_7.22, or kernel64nuc_7.22ext
  2. Verify if the system allows unauthenticated access to SAP services
    Review your network configuration to determine if SAP application servers and ports are accessible from unauthenticated or unauthorized network segments. Check firewall rules, network ACLs, and any SAP Gateway or Message Server exposures.
    Affected if SAP services are accessible from unauthorized network segments without proper network-level restrictions, allowing unauthenticated attackers to reach the affected components
  3. Confirm the affected authorization scenario applies
    Since this is a missing authorization control vulnerability, determine if your environment uses the specific ABAP functionality or transactions that lack proper authorization checks. This typically requires reviewing the specific data access paths mentioned in the security note.
    Affected if The system uses ABAP components or data access paths that are missing the proper authorization controls referenced in the security note for your kernel version

You are affected if your SAP NetWeaver ABAP kernel version matches one of the listed affected versions AND your system can be reached by unauthenticated attackers from unauthorized network segments.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the relevant SAP security patches for the affected kernel versions. Until patches are available, implement network-level restrictions to limit exposure of the SAP services to unauthorized network segments.

Recommended fix Moderate confidence

Latest available kernel patch for your respective version (7.22 EXT, 7.53, 7.54, 7.77, 7.85, 7.89, 7.91, 7.92, 7.93, 7.94, KERNEL64UC, KERNEL64NUC) as specified in SAP Security Note 3266379 or successor

  1. Identify the current SAP NetWeaver ABAP kernel version using transaction SM51 or by checking the kernel patch level
  2. Review SAP Note 3266379 (or most recent related security note) for this CVE to obtain the specific kernel patch required
  3. Apply the latest available kernel patch for your respective kernel version (7.22, 7.53, 7.54, 7.77, or newer) that includes the security fix
  4. After kernel update, restart the SAP instance following standard SAP kernel upgrade procedures
  5. Verify the fix is applied by checking the kernel version again and confirming the security note is implemented
  6. Test critical ABAP transactions and RFC connections to ensure normal operation post-patch
Caveat Kernel patches may require downtime and should be tested in a non-production system first; ensure proper system backup before applying

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Netweaver Application Server Abap Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-41366 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data