CVE-2026-43711

App crash via CoreMedia video memory corruption

Published Jul 27, 2026 · Updated Jul 27, 2026

Memory corruption in CoreMedia across affected Apple operating systems allows attackers to crash apps by processing crafted video files. CoreMedia performs unsafe memory handling while parsing attacker-controlled video data; Apple has not disclosed the faulty operation or memory-lifetime error. A target app must process the file, and affected releases are iOS and iPadOS, tvOS, visionOS, and watchOS before 26.6 plus macOS Sonoma before 14.8.8, Sequoia before 15.7.8, and Tahoe before 26.6; the reported consequence is app termination, not system shutdown.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Memory corruption in CoreMedia across affected Apple operating systems allows attackers to crash apps by processing crafted video files. CoreMedia performs unsafe memory handling while parsing attacker-controlled video data; Apple has not disclosed the faulty operation or memory-lifetime error. A target app must process the file, and affected releases are iOS and iPadOS, tvOS, visionOS, and watchOS before 26.6 plus macOS Sonoma before 14.8.8, Sequoia before 15.7.8, and Tahoe before 26.6; the reported consequence is app termination, not system shutdown.

The record

CVE
CVE-2026-43711
Published
Jul 27, 2026
Updated
Jul 27, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-119, T1204.002, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <26.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <26.6
Apple · visionOSversion=0 <26.6
Apple · tvOSversion=0 <26.6
Apple · macOSversion=0 <14.8.8; version=0 <15.7.8; version=0 <26.6
Apple · watchOSversion=0 <26.6

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002Malicious File
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo