PT-2021-3835 · Microsoft · Windows Scripting Engine+2

Ivan Fratric · Published 2021-08-10 · Updated 2023-12-28 · CVE-2021-34480

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions Windows Scripting Engine (affected versions not specified)

Description The issue is related to a memory corruption vulnerability in the Scripting Engine component of Windows operating systems, caused by a buffer overflow in memory. This can be exploited by a remote attacker to cause a denial of service. The vulnerability also allows remote attackers to execute arbitrary code and affect the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

BDU:2021-04165

CVE-2021-34480

Affected Products

Internet Explorer

Windows

Windows Scripting Engine

References · 10

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-34480 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34480 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34480 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04165 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34480 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34480 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34480 · Security Note
• https://t.me/aptreports/2215 · Telegram Post
• http://packetstormsecurity.com/files/164121/Internet-Explorer-JIT-Optimization-Memory-Corruption.html · Note
• https://t.me/cybersecuritytechnologies/4306 · Telegram Post