CVE-2023-21716CWE-190

CVE-2023-21716

Critical Β· published February 15, 2023

Patch now

High probability of exploitation

CVSS calls it critical at 9.8. It sits in the 99.7th percentile for exploit probability.

CVSS v3.1
9.8
EPSS
85%
Percentile
99.7
In the wild
Unconfirmed
What it is

🚨 A specially crafted document is all it takes to unleash a world of trouble! This Microsoft Word vulnerability could give attackers remote code execution capabilities, letting them take over your system. πŸ”₯ Think of it like a trusted friend inviting you over for a home-cooked meal, but they've secretly laced the dish with something harmful β€” you won't notice until it’s too late! In this case, an attacker can trick Word into running malicious code just by opening a document. The potential fallout from this vulnerability is absolutely devastating. An attacker could gain full control of your system, allowing them to steal sensitive information, deploy malware, or even wipe your data clean β€” all through a seemingly innocent Word file. Imagine the chaos!

Put simply

Think of it like a trusted friend inviting you over for a home-cooked meal, but they've secretly laced the dish with something harmful β€” you won't notice until it’s too late! In this case, an attacker can trick Word into running malicious code just by opening a document. This remote code execution vulnerability in Microsoft Word allows attackers to execute arbitrary code on a victim's machine when they open a specially crafted document. It stems from improper handling of objects in memory, enabling this escalated access.

What to do

The potential fallout from this vulnerability is absolutely devastating. An attacker could gain full control of your system, allowing them to steal sensitive information, deploy malware, or even wipe your data clean β€” all through a seemingly innocent Word file. Imagine the chaos! To protect yourself, ensure that you update Microsoft Word to the latest version immediately. Regularly review and apply security patches to safeguard against such vulnerabilities, and consider disabling macros unless absolutely necessary. πŸ›‘οΈ You've got this! Follow these steps and you'll be well on your way to securing your system. Together, we can keep the internet a safer place! πŸ˜„

The record
Technical detail
CVSS v3.1
9.8 Β· CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.84800 Β· 99.7th percentile
Weakness
CWE-190 Β· Integer Overflow or Wraparound
Published
2023-02-15T01:15Z
Affected products (12)
ProductVersionsFixed in
microsoft/officeall versionsβ€”
microsoft/office_long_term_servicing_channelall versionsβ€”
microsoft/office_online_serverall versionsβ€”
microsoft/office_web_appsall versionsβ€”
microsoft/sharepoint_enterprise_serverall versionsβ€”
microsoft/sharepoint_enterprise_serverall versionsβ€”
microsoft/sharepoint_foundationall versionsβ€”
microsoft/sharepoint_serverall versionsβ€”
microsoft/sharepoint_serverall versionsβ€”
microsoft/sharepoint_serverall versionsβ€”
microsoft/wordall versionsβ€”
microsoft/wordall versionsβ€”
References (2)
EPSS history
Timeline
  • 14 FEB 19:33Z
    Microsoft Word Remote Code Execution Vulnerability
    cvelistv5