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CVE-2018-4990 is a double-free vulnerability in Adobe Acrobat and Adobe Reader (Acrobat/Reader DC 2018.011.20038 and earlier; 2017.011.30079 and earlier; Classic 2015 2015.006.30417 and earlier). The flaw can be triggered by opening a specially crafted PDF containing a crafted JPEG2000 image; in the observed exploit chain, embedded JavaScript manipulated a PDF object (Button1) holding the JPEG2000 to trigger the double-free, then used heap-spraying and ROP (notably leveraging gadgets in the EScript.api plugin) to execute native shellcode and run an embedded PE payload, achieving code execution in the context of the current user.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A double-free memory corruption vulnerability in Adobe Acrobat/Reader that can be triggered via a specially crafted PDF, leading to remote code execution when the file is opened.
A previously unknown Adobe Reader/Acrobat remote code execution vulnerability (double-free in handling a crafted JPEG2000 image embedded in a PDF) exploited via embedded JavaScript to gain memory read/write primitives and execute native shellcode (via ROP), ultimately running an embedded PE payload.
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.