CVE-2021-33663
Last modified
CVE-2021-33663 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. SAP NetWeaver AS ABAP, versions - KRNL32NUC - 7.22,7.22EXT, KRNL32UC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83,7.84, allows an unauthorized attacker to insert cleartext commands due to improper restriction of I/O buffering into encrypted SMTP sessions over the network which can partially impact the integrity of the application.. EPSS estimates a 0.77% chance of exploitation in the next 30 days.
Description
SAP NetWeaver AS ABAP, versions - KRNL32NUC - 7.22,7.22EXT, KRNL32UC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83,7.84, allows an unauthorized attacker to insert cleartext commands due to improper restriction of I/O buffering into encrypted SMTP sessions over the network which can partially impact the integrity of the application.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sap | Netweaver Application Server Abap | kernel_7.22 |
| Sap | Netweaver Application Server Abap | kernel_7.49 |
| Sap | Netweaver Application Server Abap | kernel_7.53 |
| Sap | Netweaver Application Server Abap | kernel_7.73 |
| Sap | Netweaver Application Server Abap | kernel_7.77 |
| Sap | Netweaver Application Server Abap | kernel_7.81 |
| Sap | Netweaver Application Server Abap | kernel_7.82 |
| Sap | Netweaver Application Server Abap | kernel_7.83 |
| Sap | Netweaver Application Server Abap | kernel_7.84 |
| Sap | Netweaver Application Server Abap | kernel_8.04 |
| Sap | Netweaver Application Server Abap | krnl32nuc_7.22 |
| Sap | Netweaver Application Server Abap | krnl32nuc_7.22ext |
| Sap | Netweaver Application Server Abap | krnl32uc_7.22 |
| Sap | Netweaver Application Server Abap | krnl32uc_7.22ext |
| Sap | Netweaver Application Server Abap | krnl64nuc_7.22 |
| Sap | Netweaver Application Server Abap | krnl64nuc_7.22ext |
| Sap | Netweaver Application Server Abap | krnl64nuc_7.49 |
| Sap | Netweaver Application Server Abap | krnl64uc_7.22 |
| Sap | Netweaver Application Server Abap | krnl64uc_7.22ext |
| Sap | Netweaver Application Server Abap | krnl64uc_7.49 |
| Sap | Netweaver Application Server Abap | krnl64uc_7.53 |
| Sap | Netweaver Application Server Abap | krnl64uc_7.73 |
| Sap | Netweaver Application Server Abap | krnl64uc_8.04 |
References
- https://launchpad.support.sap.com/#/notes/3030604Permissions Required, Vendor Advisory
- https://launchpad.support.sap.com/#/notes/3030604Permissions Required, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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