PT-2026-57486 · Microsoft · Edge

Published 2026-07-11 · Updated 2026-07-11 · CVE-2026-58281

Positive Technologies (AI Summary)

CVSS v3.1

8.3

High

Base vector

AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Microsoft Edge (Chromium-based) (affected versions not specified)

Description Deserialization of untrusted data allows an unauthorized attacker to execute code over a network. Deserialization is the process of converting a data format, such as JSON or XML, back into an object that a program can use.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-58281

Affected Products

Edge

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-58281 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58281 · Vendor Advisory
• https://twitter.com/vuldb/status/2076052677730197896 · Twitter Post