CVE-2021-45420

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

November 7, 2026

Last Seen

November 7, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Coldframe Honeypot Mimics Supermarket Refrigeration Systems to Log Attacks42.9

In 2026, attackers exploited internet-facing refrigeration supervisors in Europe, using default passwords and outdated firmware to initiate unauthorized defrost cycles. In response, Hedgerow-dev released Coldframe, a Python-based honeypot that impersonates Danfoss AK-SM 800A and Dixell XWEB EVO cont...