Vulnerability · Published Sep 30, 2021 · Assigned by adobe

CVE-2021-21089Adobe Acrobat Reader DC URI Parsing Out-Of-Bounds Read

Low 3.3

In plain English

A low-severity out-of-bounds read 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 1.9% (higher than 79% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low

Exploit odds (30 days)1.9%top 20.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to locally escalate privileges 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 2020.013.20074unspecified – through 2020.001.30018unspecified – through 2017.011.30188unspecified – through None

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References

https://helpx.adobe.com/security/products/acrobat/apsb21-09.html x_refsource_MISC