Is CVE-2020-6115 actively exploited?

No active exploitation of CVE-2020-6115 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-6115 be exploited remotely?

No. CVE-2020-6115 requires local access to exploit.

What is the CVSS score of CVE-2020-6115?

CVE-2020-6115 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2020-6115

CWE-416Published: September 17, 2020· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An exploitable vulnerability exists in the cross-reference table repairing functionality of Nitro Software, Inc.’s Nitro Pro 13.13.2.242. While searching for an object identifier in a malformed document that is missing from the cross-reference table, the application will save a reference to the object’s cross-reference table entry inside a stack variable. If the referenced object identifier is not found, the application may resize the cross-reference table which can change the scope of its entry. Later when the application tries to reference cross-reference entry via the stack variable, the application will access memory belonging to the recently freed table causing a use-after-free condition. A specially crafted document can be delivered by an attacker and loaded by a victim in order to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2020-6115 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.