What is CVE-2021-21798?

CVE-2021-21798 is a high-severity vulnerability in Nitro Pro, classified under CWE-562. CVSS score: 8.8/10. Published 2021-09-15.

How severe is CVE-2021-21798?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-21798 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Nitro Pro

CVE-2021-21798

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…

EPSS: 0.634 (98.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

N/a Nitro Pro — versions Nitro Pro 13.31.0.605 , Nitro Pro 13.33.2.645

Weakness classification (CWE)

CWE-562

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1267 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21798?: CVE-2021-21798 is a high-severity vulnerability in Nitro Pro, classified under CWE-562. CVSS score: 8.8/10. Published 2021-09-15.
How severe is CVE-2021-21798?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-21798 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.