CVE-2026-58616MediumMicrosoft CVSS 4.4CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C

Microsoft security update for CVE-2026-58616 — Microsoft Edge

Published
August 28, 2026
Last Modified
—

🔗 CVE IDs covered (1)

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58616. This page also shows what EchelonGraph holds for CVE-2026-58616, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products6

  • Microsoft Edge (Chromium-based)
  • Microsoft Edge for Android
  • Microsoft Edge for Linux
  • Microsoft Edge for MAC
  • Microsoft Edge for Windows
  • Microsoft Edge for iOS

✅ Updates Microsoft lists: 2 updates

2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update152.0.4191.52
—Security Update152.0.4191.53

🧭 EchelonGraph on CVE-2026-58616

EchelonGraph score
4.4 MEDIUM
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2026-58616, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (3)