HIGHCVSS v3.1 8.5Actively exploited · CISA KEV since 2023-03-10Vulnerability
CVE-2021-39144
XStream contains a remote code execution vulnerability that allows an attacker to manipulate the processed input stream and replace or inject objects that result in the execution of a local command on the server. This vulnerability can affect multiple products, including but not limited to VMware Cloud Foundation.
Properties
- Euvd product
- xstream
- Vulnerability name
- XStream Remote Code Execution Vulnerability
- First seen
- 2025-10-21T23:25:37+00:00
- Cvss score
- 8.5
- Epss score
- 0.98124
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2023-03-31
- Euvd assigner
- GitHub_M
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2023-03-10T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2023-03-10
- Score
- 8.5
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Euvd vendor
- x-stream
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 8.5
Related Entities (41 · showing 25)
AFFECTS_PRODUCT (36 · showing 20)
HAS_WEAKNESS (3)
DESCRIBES (1)
INVOLVES (1)
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