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CVE-2026-43718 is a stack-based buffer overflow vulnerability in Apple’s WebRTC component. The flaw is triggered when Safari or another affected Apple platform processes maliciously crafted web content, and Apple states it was addressed through improved input validation. The issue affects Safari 26.5.2 prior versions, iOS 26.5.2 prior versions, iPadOS 26.5.2 prior versions, macOS Tahoe 26.5.2 prior versions, and corresponding Apple platform releases that include the vulnerable WebRTC code path. Successful triggering leads to an unexpected Safari crash.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A WebRTC vulnerability in Apple platforms where malicious web content may cause Safari to crash unexpectedly.
A WebRTC vulnerability where processing maliciously crafted web content may lead to an unexpected Safari crash.
A stack overflow vulnerability in web content processing that could cause an unexpected Safari crash.
A macOS Tahoe web content processing vulnerability involving stack overflow that may cause an unexpected Safari crash.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.