CVE-2026-43744

MEDIUM 5.5 ALL-YEARS

Published 2026-07-27 · Last modified 2026-08-17 · apple · NVD: Modified

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing an audio stream in a maliciously crafted media file may terminate the process.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 5th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

5.5CVSS 3.1 · MEDIUM · ADP

ConfidentialityNone
IntegrityNone
AvailabilityHigh

What an attacker needs

⚠Access: Requires local access to the host
✓Privileges: No account or privileges required
⚠User interaction: A user must take an action (click / open a file)
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Apple

Products Ios And Ipados Macos Tvos Visionos Watchos Ipados Iphone Os

Weakness (CWE)

CWE-787: Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Apple	Ipados	< 26.6
Apple	Iphone Os	< 26.6
Apple	Macos	≥ 14.0 and < 14.8.8
Apple	Macos	≥ 15.0 and < 15.7.8
Apple	Macos	≥ 26.0 and < 26.6
Apple	Tvos	< 26.6
Apple	Visionos	< 26.6
Apple	Watchos	< 26.6

All CVSS metrics

MEDIUM 5.5 v3.1 · ADP Primary
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
MEDIUM 5.5 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Advisories

https://support.apple.com/en-us/128066 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340
https://support.apple.com/en-us/128067 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340
https://support.apple.com/en-us/128068 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340
https://support.apple.com/en-us/128069 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340
https://support.apple.com/en-us/128070 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340
https://support.apple.com/en-us/128071 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340
https://support.apple.com/en-us/128072 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-49510 ADVISORYEUVD · EUVD-2026-49510

Technical & other

https://support.apple.com/en-us/148287CVE record · apple · Updated 2026-08-17T21:30:10.402Z
NVD · CVE-2026-43744 · Updated 2026-08-17T22:17:10.340

Sources: NVD · CVE.org · All sources and attribution · EPSS