SB2025050205 - Multiple vulnerabilities in Microsoft Edge

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2025-4050)

The vulnerability allows a remote attacker to gain access to crash the browser.

The vulnerability exists due to a boundary condition within the DevTools component in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger an out-of-bounds read error and crash the browser.

2) Input validation error (CVE-ID: CVE-2025-4051)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input in DevTools in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

3) Improperly implemented security check for standard (CVE-ID: CVE-2025-4052)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in DevTools in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

4) Heap-based buffer overflow (CVE-ID: CVE-2025-4096)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in HTML. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

5) Spoofing attack (CVE-ID: CVE-2025-29825)

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of UI elements on the web page. A remote attacker can trick the victim into clicking on a specially crafted URL and gain access to sensitive information.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-4050
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-4051
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-4052
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-4096
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-29825