CVE-2025-53774 Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Medium 6.5
Published
Updated
Check this codebase for CVE-2025-53774 and fix it if it is affected.
What it is: CVE-2025-53774 is a medium-severity vulnerability in Microsoft 365 Copilot's Business Chat, published on 7 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-53774 in the wild and no public exploit code.
Affected product: Microsoft 365 Copilot's Business Chat. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-53774/ (Markdown: https://insights.sbomify.com/CVE-2025-53774/index.md)
An attacker can exploit a command injection flaw in Microsoft 365 Copilot BizChat to disclose sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-53774?
CVE-2025-53774 is a medium-severity vulnerability in Microsoft 365 Copilot's Business Chat, published on 7 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Weakness: CWE-77
Which versions are affected by CVE-2025-53774?
It affects 1 product.
Products include Microsoft 365 Copilot Chat.
How do I fix CVE-2025-53774?
No fix has been published for CVE-2025-53774 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-53774 being exploited?
There is no known exploitation of CVE-2025-53774 in the wild and no public exploit code.
Other vulnerabilities in Microsoft 365 Copilot's Business Chat
- CVE-2026-26137 Microsoft Exchange Elevation of Privilege Vulnerability
- CVE-2025-59272 Copilot Information Disclosure Vulnerability
- CVE-2025-59286 Copilot Information Disclosure Vulnerability
- CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability
- CVE-2025-53787 Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Sources
Also known as GHSA-hp6v-f522-x8gx.