CVE-2021-21488 json
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-control…
published 5y ago modified 4mo ago also EUVD-2021-8761
- cvss
- 6.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
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.
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1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
Affected products
- SAP SE SAP NetWeaver Knowledge Management
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
wiki.scn.sap.com
/wiki/pages/viewpage.action?pageId=571343107
vendor-advisory
-
launchpad.support.sap.com
/#/notes/2983436
permissions-required, vendor-advisory
Sources
- CVE List CVE-2021-21488
- NVD CVE-2021-21488
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