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CVE-2026-91732 Edge, Visual Studio: Detection & IOCs

Microsoft Edge below 156.0.4314.58 and Visual Studio 2017 to 2026 carry three flaws: 9 detection rules, 13 IOCs and a free Splunk SPL rule.

Read the full threat intel for CVE-2026-91732 Edge, Visual Studio: Detection & IOCs →

Chapters

  1. 0:00The hook3 vulnerabilities in Microsoft Edge and Studio
  2. 0:05The storyHK GovCERT issued the alert.
  3. 0:11Attack pathRemote attackers exploit vulnerabilities via crafted content.
  4. 0:26AttributionNo threat actor is attributed.
  5. 0:31Indicators of compromise7 indicators to hunt: 7 package names.
  6. 0:37MITRE ATT&CK techniques4 ATT&CK techniques, from execution to credential access.
  7. 0:42Remediation2 steps now: Update Microsoft Edge to version.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:003 vulnerabilities in Microsoft Edge and Studio

0:05HK GovCERT issued the alert.

0:07No wild attacks yet.

0:12Remote attackers exploit vulnerabilities via crafted content.

0:16Bypassing trust controls and security policies.

0:19Enabling remote code execution and spoofing.

0:26No threat actor is attributed. Confidence: low.

0:317 indicators to hunt: 7 package names.

0:374 ATT&CK techniques, from execution to credential access.

0:422 steps now: Update Microsoft Edge to version.

0:509 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.