High severity7.8NVD Advisory· Published Oct 7, 2021· Updated Jun 17, 2026
CVE-2021-40726
CVE-2021-40726
Description
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability when processing AcroForm field that could result in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
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Affected products
2- Range: <=2021.005.20060, <=2020.004.30006, <=2017.011.30199
- Range: unspecified
Patches
Vulnerability mechanics
References
2- helpx.adobe.com/security/products/acrobat/apsb21-55.htmlnvdRelease NotesVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-1249/nvdThird Party AdvisoryVDB Entry
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