CVE-2021-38164Network attack vector

Financial data access via missing authorization

Published Sep 14, 2021 · Updated Aug 4, 2024

Missing authorization in RFOPENPOSTING_FR in SAP ERP Financial Accounting allows remote authenticated users to read and modify accounting data. The report's network-exposed functions invoke restricted financial-posting operations without enforcing the user-specific authorization checks those operations require. A registered account is required; successful exploitation crosses that account's assigned permissions and exposes or changes financial records reserved for another user.

CVSS severity5.4
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in RFOPENPOSTING_FR in SAP ERP Financial Accounting allows remote authenticated users to read and modify accounting data. The report's network-exposed functions invoke restricted financial-posting operations without enforcing the user-specific authorization checks those operations require. A registered account is required; successful exploitation crosses that account's assigned permissions and exposes or changes financial records reserved for another user.

The record

CVE
CVE-2021-38164
Published
Sep 14, 2021
Updated
Aug 4, 2024
Vendor
SAP SE
Product
SAP ERP Financial Accounting
Classifications
CWE-862, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 100
  2. Affected versionversion=< 101
  3. Affected versionversion=< 102
  4. Affected versionversion=< 103
  5. Affected versionversion=< 104
  6. Affected versionversion=< 105
  7. Affected versionversion=< 602
  8. Affected versionversion=< 603
  9. Affected versionversion=< 604
  10. Affected versionversion=< 605
  11. Affected versionversion=< 606
  12. Affected versionversion=< 616
  13. Affected versionversion=< 618
  14. Affected versionversion=< 700
  15. Affected versionversion=< 720
  16. Affected versionversion=< 730
  17. Affected versionversion=< S4CORE
  18. Affected versionversion=< SAP_APPL - 600
  19. Affected versionversion=< SAP_FIN - 617
  20. Affected versionversion=< SAPSCORE - 125

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SAP SE · SAP ERP Financial Accountingversion=< 100; version=< 101; version=< 102; version=< 103; version=< 104; version=< 105; version=< 602; version=< 603; version=< 604; version=< 605; version=< 606; version=< 616; version=< 618; version=< 700; version=< 720; version=< 730; version=< S4CORE; version=< SAP_APPL - 600; version=< SAP_FIN - 617; version=< SAPSCORE - 125

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
5.4SAP SECVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
5.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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