CVE-2020-26829

CRITICAL

CVSS Score

Published: December 9, 2020 at 04:28 PM UTC

Updated: June 17, 2026 at 03:08 AM UTC

1 product affected across 1 vendorNetweaver Application Server Java

Using SAP NetWeaver AS JAVA (P2P Cluster Communication) by SAP SE?

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Severity

CRITICAL10

Exploit prediction

EPSS 5%

Description

SAP NetWeaver AS JAVA (P2P Cluster Communication), versions - 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, allows arbitrary connections from processes because of missing authentication check, that are outside the cluster and even outside the network segment dedicated for the internal cluster communication. As result, an unauthenticated attacker can invoke certain functions that would otherwise be restricted to system administrators only, including access to system administration functions or shutting down the system completely.

Affected

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

Netweaver Application Server Java · SAP

95%

v < 7.11v < 7.20v < 7.30v < 7.31v < 7.40v < 7.507.11 7.20 7.30 7.31 7.40 7.50

Affected range stops below 7.11, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.20, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.30, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.31, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.40, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.50, 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 (4)

x_refsource_MISCThird Party Advisory

Source: [email protected]

http://packetstormsecurity.com/files/163166/SAP-Netweaver-JAVA-7.50-Missing-Authorization.html

Mailing Listx_refsource_FULLDISCThird Party Advisory

Source: [email protected]

http://seclists.org/fulldisclosure/2021/Jun/33

x_refsource_MISCPermissions RequiredVendor Advisory

Source: [email protected]

https://launchpad.support.sap.com/#/notes/2974774

x_refsource_MISCVendor Advisory

Source: [email protected]

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564757079

CVSS

10CRITICAL[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-306

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