Microsoft Edge up to 151.0.4129.59 type confusion

Summaryinfo

A vulnerability marked as critical has been reported in Microsoft Edge. The impacted element is an unknown function. This manipulation causes type confusion. This vulnerability appears as CVE-2026-70339. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Microsoft Edge. It has been declared as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Access of resource using incompatible type ('type confusion') 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 known as CVE-2026-70339 since 08/04/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 08/11/2026).

Upgrading to version 151.0.4129.78 eliminates this vulnerability.

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

Productinfo

Type

• Web Browser

Vendor

• Microsoft

Name

• Edge

Version

• 3.3.2604.3097
• 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
• 134.0.3124.93
• 135.0.3179.54
• 135.0.3179.98
• 136.0.3240.50
• 138.0.3351.65
• 140.0.3485.54
• 140.0.3485.71
• 140.0.3485.81
• 142.0.3595.53
• 143.0.3650.66
• 143.0.3650.88
• 143.0.3650.97
• 144.0.3719.82
• 145.0.3800.58
• 146.0.3856.59
• 146.0.3856.84
• 147.0.3912.60
• 148.0.3967.55
• 148.0.3967.70
• 149.0.4022.68
• 150.0.4078.48
• 150.0.4078.50
• 150.0.4078.80
• 150.0.4078.99
• 151.0.4129.59

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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