What is the severity of CVE-2025-21355?

CVE-2025-21355 is classified as a critical vulnerability due to its potential to allow an unauthorized attacker to execute code remotely.

How do I fix CVE-2025-21355?

To mitigate CVE-2025-21355, ensure that you apply the latest security updates and patches provided by Microsoft for Bing.

What systems are affected by CVE-2025-21355?

CVE-2025-21355 specifically affects Microsoft Bing software.

What are the risks associated with CVE-2025-21355?

The risks associated with CVE-2025-21355 include unauthorized code execution, which could lead to data breaches or system compromises.

Is there a workaround for CVE-2025-21355?

As of now, there are no known workarounds for CVE-2025-21355; applying updates is the recommended course of action.

Vulnerability/
CVE-2025-21355

Exploited

high

8.6

CWE

306

19/2/2025

20/2/2025

CVE-2025-21355: Microsoft Bing Remote Code Execution Vulnerability

First published: Wed Feb 19 2025(Updated: )

<p>Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network</p>

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Bing Search

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Reference Links

Peer vulnerabilities

(Found alongside the following vulnerabilities)

CVE-2025-24989

Frequently Asked Questions

What is the severity of CVE-2025-21355?
CVE-2025-21355 is classified as a critical vulnerability due to its potential to allow an unauthorized attacker to execute code remotely.
How do I fix CVE-2025-21355?
To mitigate CVE-2025-21355, ensure that you apply the latest security updates and patches provided by Microsoft for Bing.
What systems are affected by CVE-2025-21355?
CVE-2025-21355 specifically affects Microsoft Bing software.
What are the risks associated with CVE-2025-21355?
The risks associated with CVE-2025-21355 include unauthorized code execution, which could lead to data breaches or system compromises.
Is there a workaround for CVE-2025-21355?
As of now, there are no known workarounds for CVE-2025-21355; applying updates is the recommended course of action.

collector/msrc
source/Microsoft
agent/type
agent/first-publish-date
collector/msrc-cve
agent/softwarecombine
collector/nvd-api
source/NVD
agent/weakness
agent/description
agent/author
collector/mitre-cve
source/MITRE
agent/title
agent/last-modified-date
collector/bleeping-computer
source/BleepingComputer
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alias/CVE-2025-21355
agent/severity
collector/the-register
source/The Register
alias/CVE-2025-24989
agent/news-ai
zeroday/true
exploited/true
agent/references
agent/source
agent/tags
agent/event
agent/trending
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/microsoft
canonical/microsoft bing search

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