What’s Vulnerable › Vulnerabilities

CVE-2021-21488

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-09 · updated 2026-06-17
• Weakness: CWE-502

Description

Knowledge Management versions 7.01, 7.02, 7.30, 7.31, 7.40, 7.50 allows a remote attacker with basic privileges to deserialize user-controlled data without verification, leading to insecure deserialization which triggers the attacker’s code, therefore impacting Availability.

Affected products

• SAP SE SAP NetWeaver (Knowledge Management): 7.01, 7.02, 7.30, 7.31, 7.40, 7.50

References

• https://launchpad.support.sap.com/#/notes/2983436
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=571343107
• https://launchpad.support.sap.com/#/notes/2983436
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=571343107

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