The company said it is updating the services it operates and releasing fixes for affected products. It advised customers to review issue-by-issue guidance for updates and actions in environments they manage.
Microsoft says it is releasing fixes for PHP2Shell, Brotli decoder and eMudhra certificate issues
Microsoft says each issue requires attention

The Microsoft Security Response Center said in a post on X that it has released fixes for PHP2Shell, a Brotli decoder vulnerability, and an eMudhra certificate authority key issue.
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Analysis
Why This Matters
- The fixes address vulnerabilities that Microsoft has identified as requiring attention, indicating potential security risks for users of affected products.
- The combination of a Brotli decoder issue and an eMudhra certificate key problem suggests the vulnerabilities span multiple components, from web compression to certificate trust infrastructure.
- Customers are advised to apply updates promptly to mitigate possible exploitation.
Background
The Microsoft Security Response Center coordinates and releases security updates for Microsoft products and services. It periodically issues fixes for vulnerabilities discovered in its systems or third-party components.
What to Watch
- Microsoft's issue-by-issue guidance will provide more details on the nature of each vulnerability and the required actions.
- Users of affected Microsoft services and products should monitor for updates and apply them as soon as practical.
- The disclosure may prompt increased scrutiny of the specific vulnerabilities by security researchers and attackers.
Sources
- Microsoft releases fixes for PHP2Shell, Brotli, and eMudhra flaws · Microsoft Security Response Center on X
Checked
7 claims in this story checked against 1 source: 7 supported.
Show each claim
- SupportedMicrosoft says it is releasing fixes for PHP2Shell, the Brotli decoder issue and the eMudhra certificate issue.Microsoft Security Response Center on X: “Microsoft releases fixes for PHP2Shell, Brotli, and eMudhra flaws.”
- SupportedMicrosoft says each issue requires attention.Microsoft Security Response Center on X: “PHP2Shell, a Brotli decoder vulnerability, and the eMudhra certificate authority key issue each require attention.”
- SupportedThe Microsoft Security Response Center said this in a post on X.Microsoft Security Response Center on X: “Microsoft Security Response Center on X”
- SupportedMicrosoft has released fixes for PHP2Shell, a Brotli decoder vulnerability and an eMudhra certificate authority key issue.Microsoft Security Response Center on X: “Microsoft releases fixes for PHP2Shell, Brotli, and eMudhra flaws. PHP2Shell, a Brotli decoder vulnerability, and the eMudhra certificate authority key issue each require attention.”
- SupportedMicrosoft is updating the services it operates.Microsoft Security Response Center on X: “Microsoft is updating the services it operates and releasing fixes for affected products.”
- SupportedMicrosoft is releasing fixes for affected products.Microsoft Security Response Center on X: “Microsoft is updating the services it operates and releasing fixes for affected products.”
- SupportedMicrosoft advised customers to review issue-by-issue guidance for updates and actions in environments they manage.Microsoft Security Response Center on X: “Customers should review the issue-by-issue guidance for updates and actions in environments they manage:”