MEDIUMCVSS 6.8Actively exploited · CISA KEV since 2021-11-03Vulnerability

CVE-2021-34448

Microsoft Windows Scripting Engine contains an unspecified vulnerability that allows for memory corruption.

Properties

Euvd product
Windows Server 2019, Windows 10 Version 1809, Windows 10 Version 20H2, Windows 10 Version 1507, Windows 10 Version 2004, Windows Server 2012, Windows Server 2012 R2, Windows Server 2008 R2 Service Pack 1, Windows 10 Version 1909, Windows 7 Service Pack 1, Windows 7, Windows 10 Version 1607, Windows 8.1, Windows 10 Version 21H1, Windows Server 2016
Vulnerability name
Microsoft Windows Scripting Engine Memory Corruption Vulnerability
First seen
2026-08-10T15:11:12+00:00
Cvss score
6.8
Epss score
0.40062
Last seen
2026-10-19T12:00:27+00:00
Due date
2021-11-17
Euvd assigner
microsoft
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2021-11-03T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2021-11-03
Euvd base score version
3.1
Score
6.8
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Microsoft
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
In Signal since
initial import (Sep 2026)
Euvd base score
6.8

Related Entities (18)

AFFECTS_PRODUCT (15)

→[Product]cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Microsoft Windows Scripting Engine Memory Corruption Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Write

INVOLVES (1)

←[Signal]kev_added · 2021-11-03

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CVE-2021-34448 (CVSS 6.8) — Ninja Signal Threat Intelligence | Ninja Signal