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01 Record

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

MediumPUBLISHEDCNA: sap
CNA base score6.5 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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02 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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.34% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 70.7% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-03-09 14:07Z5 YR AGO
Last updated
2024-08-03 18:16Z2 YR AGO
Reserved
2020-12-30
Assigning CNA
sap
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-502Deserialization of Untrusted DataBase
Data version
5.1
Document digest
455733803ef114f06edc7ae2a8a509bd0168b664b617b2ab8e506bac90010117

05 Affected products

VendorProductVersionsPlatforms
SAP SESAP NetWeaver Knowledge Management< 7.01, < 7.02, < 7.30, < 7.31, < 7.40, < 7.50—

06 References