SB20260415146 - Multiple vulnerabilities in Microsoft Word

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2026-33115)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can execute arbitrary code on the target system.

2) Use-after-free (CVE-ID: CVE-2026-33095)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.

3) Out-of-bounds read (CVE-ID: CVE-2026-33822)

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

The vulnerability exists due to a boundary condition in Microsoft Word. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.

4) Use-after-free (CVE-ID: CVE-2026-23657)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.

5) Untrusted Pointer Dereference (CVE-ID: CVE-2026-33114)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to untrusted pointer dereference in Microsoft Word. A remote attacker can execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33115
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33095
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33822
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23657
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33114