CVE-2021-34523

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

March 25, 2026

Last Seen

May 13, 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

FamousSparrow APT Expands Targeting to Azerbaijani Energy Sector76.3

FamousSparrow, a China-aligned APT group, launched a multi-wave cyberespionage campaign against an Azerbaijani oil and gas company from late December 2025 to February 2026. The attackers employed an evolved DLL sideloading technique to deploy the Deed RAT and Terndoor backdoors, enhancing their evas...

Old Vulnerabilities Persist Amid AI Advancements51.9

Organizations face heightened risks from old vulnerabilities as the AI era progresses. A recent study by TrendAI™ Research highlights that cybercriminals continue to exploit long-disclosed vulnerabilities, with the oldest request targeting a flaw from 2011. The resurgence of the exploit market, part...