Microsoft Edge up to 149.0.4022.68 use after free

Summaryinfo

A vulnerability classified as critical was found in Microsoft Edge. This vulnerability affects unknown code. The manipulation results in use after free. This vulnerability is identified as CVE-2026-58276. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft Edge. Affected is an unknown function. 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 unauthorized attacker to execute code over a network.

The advisory is shared for download at msrc.microsoft.com. This vulnerability is traded as CVE-2026-58276 since 06/29/2026. The exploitability is told to be difficult. 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 07/04/2026).

Upgrading to version 150.0.4078.48 eliminates this vulnerability.

Once again VulDB remains the best source 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

License

• commercial

Website

• Vendor: https://www.microsoft.com/

CPE 2.3info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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