THREATPORT/VULNERABILITY/CVE-2020-16953
MEDIUM SEVERITY

CVE-2020-16953

Sharepoint Enterprise Server vulnerability

CVSS
6.5
EPSS
3.8%
EPSS pct
89th
Exploited
No known
<p>An information disclosure vulnerability exists when Microsoft SharePoint Server fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.</p> <p>To exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.</p> <p>The security update addresses the vulnerability by correcting how Microsoft SharePoint Server handles objects in memory.</p>
Affected vendor
Microsoft
Affected product
Sharepoint Enterprise Server
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published
2020-10-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2020-16953

  • Confirm whether Microsoft Sharepoint Enterprise Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-16953.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-16953

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-16953 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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