CVE-2020-1493

mediumpriority · track · 35EPSS 0.073 · 94 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

7.30% (94th) EPSS

CVSS 4.3 · medium

Is it mine?

16 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

An information disclosure vulnerability exists when attaching files to Outlook messages. This vulnerability could potentially allow users to share attached files such that they are accessible by anonymous users where they should be restricted to specific users. To exploit this vulnerability, an attacker would have to attach a file as a link to an email. The email could then be shared with individuals that should not have access to the files, ignoring the default organizational setting. The security update addresses the vulnerability by correcting how Outlook handles file attachment links.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.14.3mediumAV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondaryexploitability 1.8 · impact 3.6

v3.15.2mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-922US

exploits (1)

Public proof-of-concept and weaponised exploit code.

0neb1n/CVE-2020-14930neb1n/CVE-2020-1493PoC · poc_in_github

affected products (16)

Products and version ranges known to be affected.

Microsoft Microsoft 365 Apps for Enterprise16.0.1 → https://aka.ms/OfficeSecurityReleasesenisa_euvdEU
Microsoft Microsoft Office 201919.0.0 → https://aka.ms/OfficeSecurityReleasesenisa_euvdEU
Microsoft Microsoft Outlook 2010 Service Pack 213.0.0.0 → publicationenisa_euvdEU
Microsoft Microsoft Outlook 2013 Service Pack 115.0.0.0 → publicationenisa_euvdEU
Microsoft Microsoft Outlook 201616.0.0.0 → publicationenisa_euvdEU
Microsoft Corp Microsoft 365 Apps for Enterpriseall versionsfstec_bduRU
Microsoft Corp Microsoft Office 2019all versionsfstec_bduRU
Microsoft Corp Microsoft Outlook 2010 Service Pack 2all versionsfstec_bduRU
Microsoft Corp Microsoft Outlook 2013 RT Service Pack 1all versionsfstec_bduRU
Microsoft Corp Microsoft Outlook 2013 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Microsoft Outlook 2016all versionsfstec_bduRU
microsoft 365 appsall versionsnvdUScpe:2.3:a:microsoft:365_apps:*:*:*:*:*:*:*:*
microsoft office= 2019nvdUScpe:2.3:a:microsoft:office:*:*:*:*:*:*:*:*
microsoft outlook= 2010nvdUScpe:2.3:a:microsoft:outlook:*:*:*:*:*:*:*:*
microsoft outlook= 2013nvdUScpe:2.3:a:microsoft:outlook:*:*:*:*:*:*:*:*
microsoft outlook= 2016nvdUScpe:2.3:a:microsoft:outlook:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-08-17modified 2026-06-17

references (11)

External citations — patches, advisories, analysis.

scry

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