Vulnerability · Published Sep 2, 2021 · Assigned by adobe

CVE-2021-28558Adobe Acrobat Reader heap-based buffer overflow could lead to arbitrary code execution

High 8.8

In plain English

A high-severity heap buffer overflow 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 10.4% (higher than 96% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)10.4%top 4.3% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by an Heap-based buffer overflow vulnerability in the PDFLibTool component. An unauthenticated attacker could leverage this vulnerability to achieve 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 2020.001.30020unspecified – through 2021.001.20150unspecified – through 2017.011.30194unspecified – through None

Weakness: CWE-122 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://helpx.adobe.com/security/products/acrobat/apsb21-29.html x_refsource_MISC