SB2025011447 - Multiple vulnerabilities in Microsoft Internet Explorer MapUrlToZone security feature

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Main Vulnerability Database SB2025011447

SB2025011447 - Multiple vulnerabilities in Microsoft Internet Explorer MapUrlToZone security feature

Published: January 14, 2025 Updated: March 10, 2025

Security Bulletin ID SB2025011447
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Improper Resolution of Path Equivalence (CVE-ID: CVE-2025-21268)

CWE-ID: CWE-41 - Improper Resolution of Path Equivalence

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


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

The vulnerability exists due to improper resolution of path equivalence in MapUrlToZone security feature. A remote attacker can trick the victim into opening a specially crafted file and gain access to sensitive information.


2) Improper Resolution of Path Equivalence (CVE-ID: CVE-2025-21189)

CWE-ID: CWE-41 - Improper Resolution of Path Equivalence

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


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

The vulnerability exists due to improper resolution of path equivalence in MapUrlToZone security feature. A remote attacker can trick the victim into opening a specially crafted file and gain access to sensitive information.

3) Improper Resolution of Path Equivalence (CVE-ID: CVE-2025-21332)

CWE-ID: CWE-41 - Improper Resolution of Path Equivalence

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


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

The vulnerability exists due to improper resolution of path equivalence in MapUrlToZone security feature. A remote attacker can trick the victim into opening a specially crafted file and gain access to sensitive information.

4) Integer underflow (CVE-ID: CVE-2025-21276)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to integer underflow when handling HTML content in MapUrlToZone security feature. A remote attacker can trick the victim into opening a specially crafted HTML file, trigger an integer underflow and crash the browser.


Remediation

Install update from vendor's website.

References