CVE-2021-33663

MEDIUM

5.3

CVSS Score

Published: June 9, 2021 at 01:33 PM UTC

Updated: June 17, 2026 at 03:54 AM UTC

1 product affected across 1 vendorNetWeaver Application Server ABAP

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Severity

MEDIUM5.3

Exploit prediction

EPSS 0.8%

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.

Affected

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

NetWeaver Application Server ABAP · SAP

95%

v < 7.22v < 7.22EXTv < 7.49v < 7.53v < 7.73v < 7.77v < 7.81v < 7.82v < 7.83v < 7.84v < 8.04< KERNEL - 7.22< KRNL32NUC - 7.22< KRNL32UC - 7.22< KRNL64NUC - 7.22< KRNL64UC - 8.04kernel_7.22 kernel_7.49 kernel_7.53 kernel_7.73 kernel_7.77 kernel_7.81 kernel_7.82 kernel_7.83 kernel_7.84 kernel_8.04 krnl32nuc_7.22 krnl32nuc_7.22ext krnl32uc_7.22 krnl32uc_7.22ext krnl64nuc_7.22 krnl64nuc_7.22ext krnl64nuc_7.49 krnl64uc_7.22 krnl64uc_7.22ext krnl64uc_7.49 krnl64uc_7.53 krnl64uc_7.73 krnl64uc_8.04

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 7.73, 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 7.82, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.83, 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

Affected range stops below 8.04, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCPermissions RequiredVendor Advisory

Source: [email protected]

https://launchpad.support.sap.com/#/notes/3030604

x_refsource_MISCVendor Advisory

Source: [email protected]

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999

CVSS

5.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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