Vulnerability · Published Oct 15, 2021 · Assigned by adobe

CVE-2021-40731Adobe Acrobat Reader DC JPEG2000 Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

High 7.8

In plain English

A high-severity out-of-bounds write in Acrobat Reader from Adobe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 8.3% (higher than 95% of all known vulnerabilities).

Severity (CVSS 3.0)7.8High

Exploit odds (30 days)8.3%top 5.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Adobe Acrobat Reader DC version 21.007.20095 (and earlier), 21.007.20096 (and earlier), 20.004.30015 (and earlier), and 17.011.30202 (and earlier) is affected by an out-of-bounds write vulnerability when parsing a crafted JPEG2000 file, which 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.

Affected products (as reported)

Vendor	Product	Versions
Adobe	Acrobat Reader	unspecified – through 21.007.20095unspecified – through 21.007.20096unspecified – through 20.004.30015unspecified – through 17.011.30202

Weakness: CWE-787 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://helpx.adobe.com/security/products/acrobat/apsb21-104.html x_refsource_MISC