CVE-2026-20953
Microsoft Office Remote Code Execution Vulnerability
Description
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
INFO
Published Date :
Jan. 13, 2026, 6:16 p.m.
Last Modified :
Jan. 13, 2026, 6:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-20953
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | f38d906d-7342-40ea-92c1-6c4a2c6478c8 | ||||
| CVSS 3.1 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-20953.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20953 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-20953
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-20953 vulnerability anywhere in the article.
-
Zero Day Initiative
The January 2026 Security Update Review
I may be in Tokyo preparing for Pwn2Own Automotive, but that doesn’t stop patch Tuesday from coming. Put aside you broken New Year’s resolutions for just a moment as we review the latest security patc ... Read more
-
BleepingComputer
Microsoft January 2026 Patch Tuesday fixes 3 zero-days, 114 flaws
Today is Microsoft's January 2026 Patch Tuesday with security updates for 114 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities.This Patch Tuesday also addres ... Read more
-
CybersecurityNews
Microsoft Patch Tuesday January 2026 – 114 Vulnerabilities Fixed Including 3 Zero-days
CVE-2026-20822Windows Graphics Component Elevation of Privilege VulnerabilityElevation of PrivilegeCVE-2026-20876Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerabilit ... Read more
The following table lists the changes that have been made to the
CVE-2026-20953 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jan. 13, 2026
Action Type Old Value New Value Added Description Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953