Is CVE-2020-37196 actively exploited?

No active exploitation of CVE-2020-37196 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-37196 be exploited remotely?

Yes. CVE-2020-37196 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-37196?

CVE-2020-37196 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.04%.

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HIGH

CVE-2020-37196

CWE-120Published: February 11, 2026· Updated: Feb 12, 2026

7.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:10.7th

Official Description

Dnss Domain Name Search Software contains a denial of service vulnerability that allows attackers to crash the application by providing an oversized registration key. Attackers can generate a 1000-character buffer payload and paste it into the registration key field to trigger an application crash.

NVD Source

Technical Analysis

CVE-2020-37196 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.