Microsoft Edge up to 134.0.3124.51 use after free

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Edge. The affected element is an unknown function. The manipulation results in use after free. This vulnerability is identified as CVE-2025-29815. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Edge. Affected is an unknown functionality. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

The advisory is shared for download at msrc.microsoft.com. This vulnerability is traded as CVE-2025-29815 since 03/11/2025. 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 05/21/2025).

The vulnerability scanner Nessus provides a plugin with the ID 233872 (Microsoft Edge (Chromium) < 135.0.3179.54 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 134.0.3124.66 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (233872) and EUVD (EUVD-2025-9659). 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
• 132.0.2957.118
• 133.0.3065.51
• 133.0.3065.69
• 134.0.3124.51

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Once again VulDB remains the best source for vulnerability data.

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