Is CVE-2020-6113 actively exploited?

No active exploitation of CVE-2020-6113 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-6113 be exploited remotely?

No. CVE-2020-6113 requires local access to exploit.

What is the CVSS score of CVE-2020-6113?

CVE-2020-6113 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2020-6113

CWE-190Published: September 17, 2020· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An exploitable vulnerability exists in the object stream parsing functionality of Nitro Software, Inc.’s Nitro Pro 13.13.2.242 when updating its cross-reference table. When processing an object stream from a PDF document, the application will perform a calculation in order to allocate memory for the list of indirect objects. Due to an error when calculating this size, an integer overflow may occur which can result in an undersized buffer being allocated. Later when initializing this buffer, the application can write outside its bounds which can cause a memory corruption that can lead to code execution. A specially crafted document can be delivered to a victim in order to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2020-6113 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.