Medium

Use-after-free in Apple Audio web content processing

IdentifiersCVE-2026-28879CWE-416· Use After Free

CVE-2026-28879 is a use-after-free vulnerability in Apple's Audio component. Apple states that processing maliciously crafted web content may lead to an unexpected process crash. The issue was addressed through improved memory management. Based on the available advisories, the flaw affects Apple platforms including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, and 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 Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, and watchOS 26.4.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can cause the targeted process handling the malicious web content to crash unexpectedly, resulting in denial of service at the process level. The provided content does not indicate code execution, privilege escalation, or data disclosure for this CVE.

Mitigation

If you can’t patch tonight, do this now.

Until patches are applied, reduce exposure to untrusted or attacker-controlled web content, since exploitation requires processing maliciously crafted web content. Platform-specific hardening beyond patching is not specified in the provided content.

Remediation

Patch, then assume compromise.

Apply the vendor fixes provided by Apple: iOS 18.7.7, iPadOS 18.7.7, iOS 26.4, iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, and watchOS 26.4, as applicable. Apple states the issue was fixed with improved memory management.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

AppleIpadosoperating_system

AppleIphone Osoperating_system

AppleMacosoperating_system

AppleTvosoperating_system

AppleVisionosoperating_system

AppleWatchosoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

12 SOURCESView more in app

apple supportNews

Apr 1, 2026

About the security content of iOS 18.7.7 and iPadOS 18.7.7 - Apple Support

A use-after-free flaw in web content processing that may cause an unexpected process crash.

apple supportNews

Mar 24, 2026

About the security content of macOS Sequoia 15.7.5 - Apple Support (CA)

A use-after-free vulnerability in macOS Sequoia triggered by maliciously crafted web content, leading to an unexpected process crash.

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity10