Vulnerability · Published Feb 11, 2021 · Assigned by adobe

CVE-2021-21057Acrobat Reader DC Invalid Memory Read Due To An Uninitialized Pointer

Medium 6.6

In plain English

A medium-severity null pointer dereference 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 1.1% (higher than 67% of all known vulnerabilities).

Severity (CVSS 3.1)6.6Medium

Exploit odds (30 days)1.1%top 33.1% 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 a null pointer dereference vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve denial of service 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-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

References

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