CVE-2025-21355
Microsoft Bing Remote Code Execution
Description
Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network
INFO
Published Date :
Feb. 19, 2025, 11:15 p.m.
Last Modified :
Feb. 19, 2025, 11:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2025-21355 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2025-21355.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21355 |
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).
News API is a simple tool for scraping news data. It returns the news title, description, and more.
Python
News API is a simple tool for scraping news data. It returns the news title, description, and more.
JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-21355 vulnerability anywhere in the article.
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The Register
Oops, some of our customers' Power Pages-hosted sites were exploited, says Microsoft
Microsoft has fixed a security flaw in its Power Pages website-building SaaS, after criminals got there first – and urged users to check their sites for signs of exploitation. Power Pages is part of M ... Read more
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BleepingComputer
Microsoft fixes Power Pages zero-day bug exploited in attacks
Microsoft has issued a security bulletin for a high-severity elevation of privilege vulnerability in Power Pages, which hackers exploited as a zero-day in attacks. The flaw, tracked as CVE-2025-24989, ... Read more
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security.nl
Kritiek Microsoft Bing-lek maakte remote code execution mogelijk
Een kritieke kwetsbaarheid in Microsoft Bing maakte remote code execution mogelijk, zo heeft Microsoft laten weten. Het techbedrijf heeft de kwetsbaarheid verholpen en Bing-gebruikers hoeven geen acti ... Read more
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The Hacker News
Microsoft Patches Actively Exploited Power Pages Privilege Escalation Vulnerability
Software Security / Vulnerability Microsoft has released security updates to address two Critical-rated flaws impacting Bing and Power Pages, including one that has come under active exploitation in t ... Read more
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Cyber Security News
Critical Microsoft Bing Vulnerability Let Attackers Execute Code Remotely
Microsoft has addressed a critical security flaw in its Bing search engine, tracked as CVE-2025-21355, which could have allowed unauthorized attackers to execute arbitrary code remotely. The vulnerabi ... Read more
The following table lists the changes that have been made to the
CVE-2025-21355 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.
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Initial Analysis by [email protected]
Mar. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:microsoft:bing:*:*:*:*:*:*:*:* Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21355 Types: Patch, Vendor Advisory -
New CVE Received by [email protected]
Feb. 19, 2025
Action Type Old Value New Value Added Tag exclusively-hosted-service Added Description Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Added CWE CWE-306 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21355
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-21355 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-2025-21355
weaknesses.