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CVE-2021-30762 is a use-after-free vulnerability in WebKit caused by incorrect memory management. Processing attacker-controlled web content can trigger the freed-object condition and enable arbitrary code execution. It affects WebKitGTK and WPE WebKit releases before 2.28.0 and was also addressed in Apple iOS 12.5.4 for supported legacy devices. Apple reported that the vulnerability may have been exploited in the wild.
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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 use-after-free memory-management vulnerability in WebKitGTK, fixed upstream in version 2.28.0.
Actively exploited use-after-free vulnerability enabling arbitrary code execution in WebKitGTK and WPE WebKit before 2.28.0.
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.