CVE-2021-21798

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.10%
Third-Party Advisory talosintelligence.com
Affected: n/a Nitro Pro
Published at:
Updated at:

References

Link Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1267 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-21798?
CVE-2021-21798 has been scored as a high severity vulnerability.
How to fix CVE-2021-21798?
To fix CVE-2021-21798, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21798 being actively exploited in the wild?
It is possible that CVE-2021-21798 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21798?
CVE-2021-21798 affects n/a Nitro Pro.
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