Deserialization in SAP Netweaver Knowledge Management
CVE-2021-21488
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.
Vulnerability class: Insecure Deserialization
EPSS: 0.013 (67.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Sap Netweaver_knowledge_management — versions 7.01, 7.02, 7.30
- Sap Se Netweaver Knowledge Management — versions < 7.01, < 7.02, < 7.30
Weakness classification (CWE)
References
- cna@sap.com (x_refsource_MISC, Vendor Advisory)
- cna@sap.com (Permissions Required, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-21488?
- CVE-2021-21488 is a medium-severity vulnerability in SAP Netweaver Knowledge Management, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2021-03-09.
- How severe is CVE-2021-21488?
- Medium severity. CVSS v3 base score is 6.5 out of 10.