Is CVE-2026-57981 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57981 being exploited in the wild.

How severe is CVE-2026-57981?

High severity, with a CVSS score of 8.8, published 3 July 2026.

Which products and versions are affected?

Microsoft Edge (Chromium-based) < 150.0.4078.48.

Is there a fix for CVE-2026-57981?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-57981 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-57981?

Check whether you run Microsoft Edge (Chromium-based) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57981: Microsoft Edge use after free remote code execution

Q: Is there a fix for CVE-2026-57981?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Q: How is CVE-2026-57981 attacked?

It is attacked over the network, in a network appliance.

Q: Am I affected by CVE-2026-57981?

Check whether you run Microsoft Edge (Chromium-based) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57981 · Severity: high · CVSS 8.8 · Published 2026-07-03

Microsoft Edge is a web browser used to access the internet and internal corporate applications. A security flaw has been identified that could allow an attacker to execute malicious code on a user's computer if they are tricked into visiting a specially crafted website. This could lead to a total compromise of the user's workstation, including the theft of sensitive data or the installation of malware.

Technologies: Microsoft Edge (Chromium-based). Vendors: Microsoft.

Quick answers

Is CVE-2026-57981 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57981 being exploited in the wild.
How severe is CVE-2026-57981?: High severity, with a CVSS score of 8.8, published 3 July 2026.
Which products and versions are affected?: Microsoft Edge (Chromium-based) < 150.0.4078.48.
Is there a fix for CVE-2026-57981?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-57981 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-57981?: Check whether you run Microsoft Edge (Chromium-based) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A use-after-free (UAF) vulnerability exists in Microsoft Edge (Chromium-based) due to improper memory management. An attacker can exploit this by hosting a malicious website and inducing a user to visit it (User Interaction required). Successful exploitation allows the attacker to execute arbitrary code in the context of the browser process. The vulnerability is tracked as CWE-416 and has been addressed in versions 150.0.4078.48 and later.

Affected products

Microsoft Edge (Chromium-based) < 150.0.4078.48

Timeline

2026-07-03: advisory: Initial advisory published by Microsoft and NVD.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57981

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