Vulnerability Monitor

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CVE-2021-33684


SAP NetWeaver AS ABAP and ABAP Platform, versions - KRNL32NUC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL32UC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL64NUC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, KRNL64UC 8.04, 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, KERNEL 8.04, 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, 7.77, 7.81, 7.84, allows an attacker to send overlong content in the RFC request type thereby crashing the corresponding work process because of memory corruption vulnerability. The work process will attempt to restart itself after the crash and hence the impact on the availability is low.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and limited availability for affected systems. Impacting 2 products from sap, from sap organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-07-14T12:15:09.497

Last Modified

2024-11-21T06:09:21.680

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-787
  • Type: Primary
    CWE-787

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application sap netweaver_abap 7.21 Yes
Application sap netweaver_abap 7.21ext Yes
Application sap netweaver_abap 7.22 Yes
Application sap netweaver_abap 7.22ext Yes
Application sap netweaver_abap 7.49 Yes
Application sap netweaver_abap 7.53 Yes
Application sap netweaver_abap 7.77 Yes
Application sap netweaver_abap 7.81 Yes
Application sap netweaver_abap kernel_8.04 Yes
Application sap netweaver_abap krnl32nuc_7.21 Yes
Application sap netweaver_abap krnl32uc_7.21 Yes
Application sap netweaver_abap krnl64nuc_7.21 Yes
Application sap netweaver_abap krnl64uc_8.04 Yes
Application sap netweaver_application_server_abap 7.21 Yes
Application sap netweaver_application_server_abap 7.21ext Yes
Application sap netweaver_application_server_abap 7.22 Yes
Application sap netweaver_application_server_abap 7.22ext Yes
Application sap netweaver_application_server_abap 7.49 Yes
Application sap netweaver_application_server_abap 7.53 Yes
Application sap netweaver_application_server_abap 7.77 Yes
Application sap netweaver_application_server_abap 7.81 Yes
Application sap netweaver_application_server_abap kernel_8.04 Yes
Application sap netweaver_application_server_abap krnl32nuc_7.21 Yes
Application sap netweaver_application_server_abap krnl32uc_7.21 Yes
Application sap netweaver_application_server_abap krnl64nuc_7.21 Yes
Application sap netweaver_application_server_abap krnl64uc_8.04 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sap's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.