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CVE-2021-30761 is a memory-corruption vulnerability in WebKit caused by improper state management. Processing maliciously crafted web content can corrupt memory and permit arbitrary code execution. The issue affects WebKitGTK and WPE WebKit releases before 2.26.0 and was also fixed in iOS 12.5.4 for supported legacy Apple devices. Apple reported that the vulnerability may have been actively exploited.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability referenced by this security advisory; the content provides no technical details or affected component.
A memory-corruption vulnerability in WebKitGTK addressed through improved state management. The content states it was fixed upstream in WebKitGTK 2.26.0 and distributed through Red Hat errata for affected Red Hat Enterprise Linux products.
Actively exploited memory-corruption vulnerability enabling arbitrary code execution in WebKitGTK and WPE WebKit before 2.26.0.
A WebKit zero-day vulnerability affecting older-generation iPhones and iPads that allowed maliciously crafted web content to execute malicious code on users' devices.
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.