Vulnerability · Published Sep 15, 2021 · Assigned by talos
CVE-2021-21798
High 8.8
In plain English
A high-severity security flaw in Nitro Pro. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 21.4% (higher than 98% of all known vulnerabilities).
Official description
An exploitable return of stack variable address vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a stack variable to go out of scope, resulting in the application dereferencing a stale pointer. This can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger the vulnerability.
Affected products (as reported)
Weakness: CWE-562 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1267 x_refsource_MISC