CRITICALCVSS v3.1 9.8Actively exploited · CISA KEV since 2024-01-10Vulnerability
CVE-2023-29357
Microsoft SharePoint Server contains an unspecified vulnerability that allows an unauthenticated attacker, who has gained access to spoofed JWT authentication tokens, to use them for executing a network attack. This attack bypasses authentication, enabling the attacker to gain administrator privileges.
Properties
- Euvd product
- Microsoft SharePoint Server 2019
- Vulnerability name
- Microsoft SharePoint Server Privilege Escalation Vulnerability
- First seen
- 2025-10-21T23:05:46+00:00
- Cvss score
- 9.8
- Epss score
- 0.99984
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2024-01-31
- Euvd assigner
- microsoft
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2024-01-10T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2024-01-10
- Score
- 9.8
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Euvd vendor
- Microsoft
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 9.8
Related Entities (6)
MENTIONED_IN (2)
AFFECTS_PRODUCT (1)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
Explore deeper with Ninja Signal's threat intelligence graph