What is CVE-2021-21796?

CVE-2021-21796 is a high-severity vulnerability in Gonitro Nitro_pro, classified under Use After Free. CVSS score: 7.8/10. Published 2021-10-18.

How severe is CVE-2021-21796?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-21796 known to be exploited?

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

Use After Free in Gonitro Nitro_pro

CVE-2021-21796

An exploitable use-after-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause an object containing the path to a document to be destroyed and then later reused, resulting in a…

Vulnerability class: Use-After-Free

EPSS: 0.158 (96.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

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

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC, Mitigation)

Frequently asked questions

What is CVE-2021-21796?: CVE-2021-21796 is a high-severity vulnerability in Gonitro Nitro_pro, classified under Use After Free. CVSS score: 7.8/10. Published 2021-10-18.
How severe is CVE-2021-21796?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-21796 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.