Adobe Acrobat Reader DC AcroForm Use-After-Free Remote Code Execution Vulnerability

published 2022-01-14 4y ago modified 2026-06-17 4mo ago also EUVD-2021-31517

cvss: 7.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 20.9%; EPSS 20.9% chance of exploitation in 30 days, percentile 97%
public exploits: 0; none known

Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Patch / fix

links 1

helpx.adobe.com/security/products/acrobat/apsb22-01.html advisory

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Exploit prediction

20.91% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

Adobe Acrobat Reader

Classification

Weakness

CWE-416 Use After Free

References

helpx.adobe.com /security/products/acrobat/apsb22-01.html
patch, vendor-advisory

Sources

CVE List CVE-2021-44701
NVD CVE-2021-44701

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