Microsoft Edge up to 132.0.2957.115 type confusion

Summaryinfo

A vulnerability was found in Microsoft Edge and classified as critical. Affected by this issue is some unknown functionality. The manipulation results in type confusion. This vulnerability is known as CVE-2025-21342. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Edge. It has been classified as critical. Affected is an unknown code. The manipulation with an unknown input leads to a type confusion vulnerability. CWE is classifying the issue as CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

The advisory is shared for download at msrc.microsoft.com. This vulnerability is traded as CVE-2025-21342 since 12/11/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 02/07/2025).

The vulnerability scanner Nessus provides a plugin with the ID 215070 (Microsoft Edge (Chromium) < 133.0.3065.51 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 133.0.3065.51 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215070). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Microsoft

Name

• Edge

Version

• 11.0.10240.16384
• 38.14393.0.0
• 38.14393.1066.0
• 98.0.1108.43
• 99.0.1150.30
• 102.0.1245.39
• 102.0.1245.41
• 103.0.1264.37
• 103.0.1264.44
• 104.0.1293.47
• 118.0.2088.88
• 118.0.2088.102
• 119.0.2151.44
• 119.0.2151.58
• 119.0.2151.72
• 120.0.2210.61
• 120.0.2210.77
• 120.0.2210.133
• 120.0.2210.160
• 121.0.2277.83
• 121.0.2277.98
• 122.0.2365.52
• 122.0.2365.63
• 122.0.2365.80
• 122.0.2365.92
• 122.0.2365.120
• 123.0.2420.53
• 123.0.2420.81
• 124.0.2478.51
• 124.0.2478.97
• 124.0.2478.109
• 126.0.2592.56
• 126.0.2592.68
• 126.0.2592.81
• 126.0.2592.102
• 127.0.2651.74
• 127.0.2651.98
• 127.0.2651.105
• 128.0.2739.42
• 129.0.2792.52
• 130.0.2849.46
• 131.0.2903.48
• 131.0.2903.63
• 131.0.2903.86
• 132.0.2957.115

License

• commercial

Website

• Vendor: https://www.microsoft.com/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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