Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Tahoe 26.4, tvOS 26.4, watchOS 26.4. An app may be able to cause unexpected system termination or write kernel memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | iOS and iPadOS | < 18.7.7, < 26.4 | 18.7.7 |
| Apple | macOS | < 15.7.5, < 26.4 | 15.7.5 |
| Apple | tvOS | < 26.4 | 26.4 |
| Apple | watchOS | < 26.4 | 26.4 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 3 repositories
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0xjohnnydev/CVE-2026-20687-AppleJPEGDriver-UAF ★ 30 · Feb 9, 2026
CVE-2026-20687: AppleJPEGDriver startDecoder Timeout UAF — iOS/macOS kernel vulnerability leading to deferred panic (A19 Pro, iOS 26.3 RC)
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enfilade-labs/CVE-2026-20687-AppleJPEGDriver-UAF ★ 2 · Apr 22, 2026
CVE-2026-20687: AppleJPEGDriver startDecoder Timeout UAF — iOS/macOS kernel vulnerability leading to deferred panic (A19 Pro, iOS 26.3 RC)
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hidra0x/hidra ★ 0 · Oct 30, 2026
Hidra - A12 / iOS 18.7.2 jailbreak research. Kernel entry via AppleJPEGDriver CVE-2026-20687. No public build yet.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 4
- WID-SEC-2026-0852 Apple iOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 8, 2026
- WID-SEC-2026-0853 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 8, 2026
- NCSC-2026-0102 Kwetsbaarheden verholpen in Apple macOS NCSC-NL (Netherlands) · Mar 25, 2026
- NCSC-2026-0101 Kwetsbaarheden verholpen in Apple iOS en iPadOS NCSC-NL (Netherlands) · Mar 25, 2026