CVE-2021-33684

MEDIUM

5.3

CVSS Score

Published: July 14, 2021 at 11:04 AM UTC

Updated: June 17, 2026 at 03:55 AM UTC

3 products affected across 1 vendorNetWeaver Application Server ABAPNetweaver AbapABAP Platform

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Severity

MEDIUM5.3

Exploit prediction

EPSS 1.0%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Netweaver Abap · SAP

95%

7.21 7.21ext 7.22 7.22ext 7.49 7.53 7.77 7.81 kernel_8.04 krnl32nuc_7.21 krnl32uc_7.21 krnl64nuc_7.21 krnl64uc_8.04

NetWeaver Application Server ABAP · SAP

95%

v < 7.21v < 7.21EXTv < 7.22v < 7.22EXTv < 7.49v < 7.53v < 7.77v < 7.81v < 7.847.21 7.21ext 7.22 7.22ext 7.49 7.53 7.77 7.81< KERNEL 8.04< KRNL32NUC 7.21< KRNL32UC 7.21< KRNL64NUC 7.21< KRNL64UC 8.04kernel_8.04 krnl32nuc_7.21 krnl32uc_7.21 krnl64nuc_7.21 krnl64uc_8.04

Affected range stops below 7.21, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.21EXT, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.22, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.22EXT, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.49, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.53, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.77, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.81, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.84, so it looks safe — our inference, not a vendor statement

ABAP Platform · SAP

60%

v < 7.21v < 7.21EXTv < 7.22v < 7.22EXTv < 7.49v < 7.53v < 7.77v < 7.81v < 7.84< KERNEL 8.04 < KRNL32NUC 7.21 < KRNL32UC 7.21 < KRNL64NUC 7.21 < KRNL64UC 8.04