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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.013 (70.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000
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
- wiki.scn.sap.com/wiki/pages/viewpage.action (Vendor Advisory)
- launchpad.support.sap.com/ (Permissions Required, 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.