CVE-2021-1715: microsoft 365_apps Out-of-bounds Write
CVSS: 9.3v2.0HighModified
Published 12-01-2021Last modified 08-10-2024
Vulnerability summary
CVE-2021-1715 is a high (CVSS 9.3) Out-of-bounds Write vulnerability in microsoft 365_apps. EPSS estimates a 3.89% chance of exploitation in the next 30 days, higher than 90.1% of scored vulnerabilities.
CVSS score
9.3/10
010
High · v2.0 (NVD)EPSS score
3.89%
0%100%
Low · +0.29 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-01-2021PublishedVulnerability first disclosed.
- 08-10-2024Last modifiedVulnerability information updated.
Description
Microsoft Word Remote Code Execution Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
High 9.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
3.89%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
+0.29 pp
From 3.60% on 18-09-2026
18-09-202618-10-2026
EPSS score3.89%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft22 products
- 365_appsna
- microsoft 365 apps for enterprise≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases
- microsoft office 2010 service pack 2≥ 13.0.0.0, < publication
- microsoft office 2019≥ 19.0.0, < https://aka.ms/OfficeSecurityReleases
- microsoft office 2019 for mac≥ 16.0.0, < publication
1 vendor · 22 products
References
2 links
msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1715Vendor Advisory- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1715X Refsource MISCX Transferred