CVE-2026-43716: Buffer Overflow

Published Jun 29, 2026
·
Updated

IOGPUFamily. A race condition was addressed with improved state handling.

Other sources

Kernel. The issue was addressed with improved input sanitization.

— Apple

Kernel. This issue was addressed with improved input validation.

— Apple

libxslt. A double free issue was addressed with improved memory management.

— Apple

libxslt. The issue was addressed with improved memory handling.

— Apple

MobileAccessoryUpdater. A buffer overflow was addressed with improved bounds checking.

— Apple

Credit

Vitaly Simonovich, Christian Meurer Xavier, Gurpreet Shergill, Merrick Hare, Drinor Selmanaj (Sentry), Khai Tran, John Lussier, Rhyru9, Kwak Kiyong, Song Nuri, Jonathan Alush-Aben, stratan@@5tratan(Almamater Technologies), Josef Korbel (Citadelo)(Talence Security), Tristan Madani@@TristanInSec(Talence Security), Gia Bui@@yabeow(Calif), Narendra Singh@@_3P1C, CVE-2026-43709, Tommy DeVoss@@thedawgyg(Braze Security Team), Юлия Мерцалова, Nan Wang@@eternalsakura13, dr3dd, Milad Nasr, Nicholas Carlini with Claude, Anthropic, Luke Francis, Soyeon Park(DEVCORE Research Team), Amy Burnett(DEVCORE Research Team), Khai Tran(DEVCORE Research Team), sherkito(DEVCORE Research Team), Kota Toda(DEVCORE Research Team), HexRabbit@@h3xr4bb1t(DEVCORE Research Team), NiNi@@terrynini38514(DEVCORE Research Team), Using GLM(Z), Brian Carpenter, Utkarsh Pal, Ignacio Sanmillan@@ulexec, Kwak Kiyong(Talence Security), Song Nuri(Talence Security), Maher Azzouzi(Calif), Tuan(Calif), Duc(Calif), OpenAI Codex Security - Amy Burnett, Evan Lambert, Mateusz Krzywicki (iVerify.io)(Braze Security Team), dr3dd(Braze Security Team), Nathaniel Oh@@calysteon, Arni Hardarson, Jody Ritonga, Behzad Najjarpour Jabbari@@_G4ru_, Aaron Grattafiori - NVIDIA AI Red Team, Josef Korbel, Idan Masas, CVE-2026-28979, impost0r (ret2plt), Hyunwoo Kim@@v4bel, Feng Xue(ThreatBook), XGPT(ThreatBook), Vladislav Shevchenko (Positive Technologies)(Baidu Security), Ye Zhang@@VAR10CK(Baidu Security), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Lyutoon, Dun

Affected Software

8 affected componentsFixes available
Apple iOS<26.5.2
26.5.2
Apple iPadOS<26.5.2
26.5.2
Apple macOS Tahoe<26.5.2
26.5.2
Apple Safari<26.5.2
26.5.2
Apple Safari<26.5.2
Apple iPadOS<26.5.2
Apple iPhone OS<26.5.2
Apple macOS>=26.0<26.5.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 26.5.2
  2. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 26.5.2
  3. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 26.5.2
  4. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 26.5.2
  5. Upgrade

    Upgrade macOS Tahoe to a version that resolves this vulnerability.

    Fixed in 26.5.2
  6. Upgrade

    Upgrade WebKit (advisory WSA-2026-0004) to a version that resolves this vulnerability.

    Patch WSA-2026-0004
  7. Upgrade

    Upgrade WebKit (Bug 313473) to a version that resolves this vulnerability.

    Patch 313473

Event History

Jun 29, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
CVE Published
via MITRE·07:43 PM
Data Sourced
via MITRE·07:43 PM
DescriptionWeakness
Data Sourced
via NVD·08:17 PM
DescriptionSeverityWeaknessAffected Software
Jul 14, 2026
Data Sourced
via Red Hat·07:09 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-43716?

CVE-2026-43716 has a medium severity rating of 6.5 according to the CVSS 3.1 metrics.

2

How do I fix CVE-2026-43716?

To mitigate CVE-2026-43716, users should update their devices to the latest Apple iOS, iPadOS, or macOS versions that include the security patches.

3

What types of vulnerabilities are associated with CVE-2026-43716?

CVE-2026-43716 is associated with vulnerabilities such as double free, use-after-free, input validation issues, race conditions, and buffer overflows.

4

Which products are affected by CVE-2026-43716?

CVE-2026-43716 affects Apple iPadOS, Apple Safari, Apple iOS, Apple macOS Tahoe, and Apple iPhone OS.

5

What does CVE-2026-43716 address regarding kernel and libxslt?

CVE-2026-43716 addresses a race condition with improved state handling in the kernel and a double free issue with improved memory management in libxslt.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203