CVE-2020-16949: microsoft 365_apps
Vulnerability summary
CVE-2020-16949 is a medium (CVSS 5.0) vulnerability in microsoft 365_apps. EPSS estimates a 2.97% chance of exploitation in the next 30 days, higher than 87% of scored vulnerabilities.
Timeline
- 16-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
<p>A denial of service vulnerability exists in Microsoft Outlook software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could cause a remote denial of service against a system.</p> <p>Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Outlook server.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Outlook handles objects in memory.</p>
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.97%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
0.00 pp
From 2.97% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft16 products
- 365_appsna
- microsoft 365 apps for enterprise≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases
- microsoft office 2019≥ 19.0.0, < https://aka.ms/OfficeSecurityReleases
- microsoft outlook 2010 service pack 2≥ 13.0.0.0, < publication
- microsoft outlook 2013 service pack 1≥ 15.0.0.0, < publication
1 vendor · 16 products
References
1 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16949X Refsource MISCPatchVendor Advisory