Threat video1:00
CVE-2026-64739 Apple Libnotify Overflow: Detection & IOCs
Apple patched a local stack overflow in Libnotify notifyd on July 27, 2026; 9 detection rules, 10 IOCs and a free Splunk SPL rule cover it.
Read the full threat intel for CVE-2026-64739 Apple Libnotify Overflow: Detection & IOCs →
Chapters
- 0:00The hookApple patched stack overflow, about 1,024 bytes.
- 0:05The storyApple says apps may terminate unexpectedly.
- 0:11Attack pathThreatBook reports a local process can trigger it.
- 0:25AttributionNo threat actor is attributed.
- 0:30Indicators of compromise6 indicators to hunt: 1 file name and 5 package names.
- 0:35MITRE ATT&CK techniques4 ATT&CK techniques, from execution to impact.
- 0:40Remediation2 steps now: Update iOS/iPadOS, tvOS, watchOS and visionOS to 26.6 or later.
- 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript
0:00Apple patched stack overflow, about 1,024 bytes.
0:05Apple says apps may terminate unexpectedly.
0:08Code execution is theoretical.
0:11ThreatBook reports a local process can trigger it.
0:14It copies into a 1,024-byte stack buffer.
0:18Stack canary appears to catch it.
0:20Apple's impact: unexpected app termination.
0:26No threat actor is attributed. Confidence: low.
0:306 indicators to hunt: 1 file name and 5 package names.
0:364 ATT&CK techniques, from execution to impact.
0:402 steps now: Update iOS/iPadOS, tvOS, watchOS and visionOS to 26.6 or later.
0:519 detection rules, in SPL, KQL and Sigma.
0:56Threadlinqs. The unified security engineering platform.