Is CVE-2021-46495 actively exploited?

No active exploitation of CVE-2021-46495 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-46495 be exploited remotely?

No. CVE-2021-46495 requires local access to exploit.

What is the CVSS score of CVE-2021-46495?

CVE-2021-46495 has a CVSS score of 5.5 (MEDIUM).

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MEDIUM

CVE-2021-46495

CWE-416Published: January 27, 2022· Updated: Jun 17, 2026

5.5

CVSS v3.1

Official Description

Jsish v3.5.0 was discovered to contain a heap-use-after-free via DeleteTreeValue in src/jsiObj.c. This vulnerability can lead to a Denial of Service (DoS).

NVD Source

Technical Analysis

CVE-2021-46495 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 availability disruption (denial of service), with a CVSS base score of 5.5.

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