Loading vulnerability…
CVE-2023-21608 is a use-after-free vulnerability in Adobe Acrobat Reader affecting versions 22.003.20282 and earlier, 22.003.20281 and earlier, and 20.005.30418 and earlier. The flaw can be triggered when the application processes a malicious file, leading to memory corruption and potentially allowing arbitrary code execution in the context of the current user. Adobe classifies the issue as critical, and exploitation requires user interaction because the victim must open the crafted file.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a working exploit for CVE-2023-21608, a use-after-free vulnerability in Adobe Acrobat Reader's JavaScript engine (resetForm operation). The exploit targets specific Windows versions of Acrobat Reader (22.00120085, 22.00120117, 22.00120142, 22.00320258) and achieves remote code execution by embedding malicious JavaScript in a PDF file. The structure includes: - 'exploit.js': The main exploit script, which performs heap spraying, object corruption, and sets up a ROP chain to execute shellcode. - 'crash.js': A minimal proof-of-concept script to trigger the vulnerability and cause a crash (demonstrating the bug). - 'exploit.pdf' and 'crash.pdf': PDF files embedding the respective JavaScript payloads for exploitation and crash demonstration. - 'README.md': Documentation describing the vulnerability, links to advisories, and a demonstration video. The exploit is operational and includes a full ROP chain and shellcode payload, demonstrating reliable code execution. No network endpoints or external domains are referenced; the attack vector is via a malicious PDF document opened by the target user. The exploit is not part of a framework and is implemented in standalone JavaScript for use in PDF files.
This repository contains a working exploit for CVE-2023-21608, a use-after-free vulnerability in Adobe Acrobat Reader's JavaScript engine that allows for remote code execution. The exploit is delivered via a malicious PDF file containing embedded JavaScript (exploit.js and crash.js), which manipulates PDF form fields and internal objects to corrupt memory and gain arbitrary code execution. The exploit targets specific Windows versions of Adobe Acrobat Reader (22.00120085, 22.00120117, 22.00120142, 22.00320258) and includes version-specific offsets and ROP chains. The payload is custom shellcode, written as an array of integers in JavaScript, which is executed after successful exploitation. The repository structure includes the main exploit script (exploit.js), a crash trigger script (crash.js), two PDF files (crash.pdf and exploit.pdf) embedding the respective JavaScript, a README with usage and reference information, and a license file. The exploit is operational and demonstrates full remote code execution capability when a vulnerable user opens the crafted PDF.
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.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.