Latest cybersecurity reporting from selected sources.

Threat actors are exploiting security flaws in TBK DVR and end‑of‑life (EoL) TP-Link Wi-Fi routers to deploy Mirai-botnet variants on compromised devices, according to findings from Fortinet FortiGuard Labs and Palo Alto Networks Unit 42

In early January 2026, KrebsOnSecurity revealed how a security researcher disclosed a vulnerability that was used to assemble Kimwolf, the world's largest and most disruptive botnet. Since then, the person in control of Kimwolf -- who goes by the handle "Dort" -- has coordinated a barrage of distributed denial-of-service (DDoS), doxing and email flooding attacks against the researcher and this author, and more recently caused a SWAT team to be sent to the researcher's home. This post examines what is knowable about Dort based on public information.

Cybersecurity researchers are calling attention to a malware campaign that's targeting security flaws in TBK digital video recorders (DVRs) and Four-Faith routers to rope the devices into a new botnet called RondoDox

A vulnerability in the popular Python-based tool for building AI agents and workflows is under active exploitation, allowing for full system compromise, DDoS attacks, and potential loss or theft of sensitive data

Cybersecurity researchers have called attention to a new campaign that's actively exploiting a recently disclosed critical security flaw in Langflow to deliver the Flodrix botnet malware

This blog uncovers an active campaign exploiting CVE-2025-3248 in Langflow versions before 1.3.0 that deploys the Flodrix botnet, enabling threat actors to achieve full system compromise, initiate DDoS attacks, and potentially exfiltrate sensitive data.

A now-patched critical security flaw in the Wazur Server is being exploited by threat actors to drop two different Mirai botnet variants and use them to conduct distributed denial-of-service (DDoS) attacks

A Mirai botnet variant dubbed Aquabot has been observed actively attempting to exploit a medium-severity security flaw impacting Mitel phones in order to ensnare them into a network capable of mounting distributed denial-of-service (DDoS) attacks

Yet another spinoff of the infamous DDoS botnet is exploiting a known vulnerability in active attacks, while its threat actors are promoting it on Telegram for other attackers to use as well, in a DDoS-as-a-service model.

Threat actors are exploiting an unspecified zero-day vulnerability in Cambium Networks cnPilot routers to deploy a variant of the AISURU botnet called AIRASHI to carry out distributed denial-of-service (DDoS) attacks

Since the end of 2024, we have been continuously monitoring large-scale DDoS attacks orchestrated by an IoT botnet exploiting vulnerable IoT devices such as wireless routers and IP cameras.

A Mirai botnet variant has been found exploiting a newly disclosed security flaw impacting Four-Faith industrial routers since early November 2024 with the goal of conducting distributed denial-of-service (DDoS) attacks

Likely Russian Hacker Exploits IoT Vulnerabilities, Many Known for YearsAn apparent Russian script kiddie is converting widespread security gaps into powerful botnets capable of launching global-scale distributed denial-of-service attacks. A threat actor with the online moniker "Matrix" is exploiting IoT vulnerabilities such as default credentials and outdated software.

A threat actor named Matrix has been linked to a widespread distributed denial-of-service (DoD) campaign that leverages vulnerabilities and misconfigurations in Internet of Things (IoT) devices to co-opt them into a disruptive botnet

A malware botnet is exploiting a zero-day vulnerability in end-of-life GeoVision devices to compromise and recruit them for likely DDoS or cryptomining attacks. [...]

The threat actors behind the CatDDoS malware botnet have exploited over 80 known security flaws in various software over the past three months to infiltrate vulnerable devices and co-opt them into a botnet for conducting distributed denial-of-service (DDoS) attacks

Attackers Exploit Old Flaw, Hijack TP-Link Archer RoutersHalf a dozen different botnets are prowling the internet for TP-Link-brand Wi-Fi routers unpatched since last summer with the goal of commandeering them into joining distributed denial-of-service attacks. Chinese router manufacture TP-Link in June patched a command injection vulnerability.

A Mirai-based botnet named 'InfectedSlurs' is exploiting a remote code execution (RCE) vulnerability in QNAP VioStor NVR (Network Video Recorder) devices to hijack and make them part of its DDoS (distributed denial of service) swarm. [...]

An active malware campaign is leveraging two zero-day vulnerabilities with remote code execution (RCE) functionality to rope routers and video recorders into a Mirai-based distributed denial-of-service (DDoS) botnet

Botnet storm drowned last record with 398 million requests per second A zero-day vulnerability in the HTTP/2 protocol was exploited to launch the largest distributed denial-of-service (DDoS) attack on record, according to Cloudflare.…