Microsoft Edge up to 134.0.3124.66 out-of-bounds

Summaryinfo

A vulnerability was found in Microsoft Edge. It has been rated as critical. The affected element is an unknown function. Performing a manipulation results in out-of-bounds. This vulnerability was named CVE-2025-29834. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Edge. This affects an unknown function. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Out-of-bounds read in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

It is possible to read the advisory at msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2025-29834 since 03/11/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/21/2025).

The vulnerability scanner Nessus provides a plugin with the ID 234325 (Microsoft Edge (Chromium) < 135.0.3179.73 (CVE-2025-29834)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 134.0.3124.93 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (234325) and EUVD (EUVD-2025-10832). Statistical analysis made it clear that VulDB provides the best quality 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
• 134.0.3124.66

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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