An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted authenticati…

published 2020-06-09 6y ago modified 2026-06-17 4mo ago also EUVD-2020-12059

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.1%; EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits: 0; none known

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted authentication request to an affected SharePoint server, aka 'Microsoft SharePoint Server Elevation of Privilege Vulnerability'.

Patch / fix

links 1

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1178 advisory

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Exploit prediction

3.13% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Microsoft Microsoft SharePoint Enterprise Server
Microsoft Microsoft SharePoint Server

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2020-1178
patch, vendor-advisory

Sources

CVE List CVE-2020-1178
NVD CVE-2020-1178

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