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

published 2019-05-16 7y ago modified 2026-06-17 4mo ago also EUVD-2019-1692

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.3%; EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits: 0; none known

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka 'Microsoft SharePoint Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0958.

Patch / fix

links 1

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0957 advisory

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Exploit prediction

3.31% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/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

Classification

Weakness

CWE-20 Improper Input Validation

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2019-0957
patch, vendor-advisory

Sources

CVE List CVE-2019-0957
NVD CVE-2019-0957

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