CVE-2021-27628
Last modified
CVE-2021-27628 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher), 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, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method DpRTmPrepareReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.. EPSS estimates a 1.51% chance of exploitation in the next 30 days.
Description
SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher), 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, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method DpRTmPrepareReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sap | Netweaver As Abap | kernel_7.22 |
| Sap | Netweaver As Abap | kernel_7.49 |
| Sap | Netweaver As Abap | kernel_7.53 |
| Sap | Netweaver As Abap | kernel_7.73 |
| Sap | Netweaver As Abap | kernel_7.77 |
| Sap | Netweaver As Abap | kernel_7.81 |
| Sap | Netweaver As Abap | kernel_7.82 |
| Sap | Netweaver As Abap | kernel_7.83 |
| Sap | Netweaver As Abap | kernel_8.04 |
| Sap | Netweaver As Abap | krnl32nuc_7.22 |
| Sap | Netweaver As Abap | krnl32nuc_7.22ext |
| Sap | Netweaver As Abap | krnl32uc_7.22 |
| Sap | Netweaver As Abap | krnl32uc_7.22ext |
| Sap | Netweaver As Abap | krnl64nuc_7.22 |
| Sap | Netweaver As Abap | krnl64nuc_7.22ext |
| Sap | Netweaver As Abap | krnl64nuc_7.49 |
| Sap | Netweaver As Abap | krnl64uc_7.22 |
| Sap | Netweaver As Abap | krnl64uc_7.22ext |
| Sap | Netweaver As Abap | krnl64uc_7.49 |
| Sap | Netweaver As Abap | krnl64uc_7.53 |
| Sap | Netweaver As Abap | krnl64uc_7.73 |
| Sap | Netweaver As Abap | krnl64uc_8.04 |
References
- https://launchpad.support.sap.com/#/notes/3021197Permissions Required, Vendor Advisory
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999Broken Link, Vendor Advisory
- https://launchpad.support.sap.com/#/notes/3021197Permissions Required, Vendor Advisory
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999Broken Link, 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.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-27622SAP Internet Graphics Service, versions - 7.20,7.20EXT,7.53,…5.9
- CVE-2021-27623SAP Internet Graphics Service, versions - 7.20,7.20EXT,7.53,…5.9
- CVE-2021-27624SAP Internet Graphics Service, versions - 7.20,7.20EXT,7.53,…5.9
- CVE-2021-27625SAP Internet Graphics Service, versions - 7.20,7.20EXT,7.53,…5.9
- CVE-2021-27626SAP Internet Graphics Service, versions - 7.20,7.20EXT,7.53,…5.9
- CVE-2021-27627SAP Internet Graphics Service, versions - 7.20,7.20EXT,7.53,…5.9
- CVE-2021-27629SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server)…7.5
- CVE-2021-27630SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server)…7.5
- CVE-2021-27631SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server)…7.5
- CVE-2021-27632SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server)…7.5
- CVE-2021-27633SAP NetWeaver AS for ABAP (RFC Gateway), versions - KRNL32NU…7.5
- CVE-2021-27634SAP NetWeaver AS for ABAP (RFC Gateway), versions - KRNL32NU…5.9
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