Horizon3.ai has released a public proof-of-concept exploit for CVE-2026-106173, a critical flaw in Fortinet FortiSIEM that lets unauthenticated attackers turn an arbitrary file write into remote code execution. Researcher Zach Hanley published the technical analysis on October 20, following Fortinet's advisory FG-IR-26-180 of October 13. …
SOCRadar's Threat Research Unit (STRU) found open directories on 45.227.254.43 in late September 2026. They led to six more adversary servers tied to INC Ransom and The Gentlemen affiliates. The servers held 8,257 AI messages across 133 sessions, source code, stolen credentials, victim workspaces and 46 victim-specific INC encryptor build…
Zeabur, a developer hosting and deployment platform, disclosed that on October 14-15, 2026 an attacker used leaked internal credentials stored in plaintext to compromise its shared clusters, some Dedicated Servers and internal systems, and ultimately read the production database. The breach affected shared clusters in nine regions, 321,81…
iRhythm Technologies, maker of the Zio wearable ECG monitor, has had a June 2026 data breach confirmed at roughly 8.18 million individuals, according to the Oregon Attorney General breach list. This is close to its entire customer base of about 8 million patients in the US and Europe. The company first identified unauthorized access on Ju…
A cyber-attack that began on October 11 against refrigeration controllers in French supermarkets is larger than first reported. It now appears to affect Dixell Electronics (a Copeland brand) temperature regulation devices as well as Danfoss controllers. CERT-FR named Danfoss AK-SC and AK-SM series, Dixell xweb and Copeland xweb as affecte…
ConnectWise took several cloud services offline, including Cloud Backup (formerly SkyKick), SaaS Security and Cloud Management, after finding unauthorized access to application identities in the ConnectWise Cloud Backup environment. The company began investigating suspicious activity on October 15 and confirmed the unauthorized access by …
Multiple ransomware groups, including Qilin and INC, are exploiting CVE-2026-0257, an authentication bypass in Palo Alto Networks PAN-OS GlobalProtect portals and gateways. Unit 42 has been investigating intrusions since early June across many sectors, including finance, healthcare and manufacturing. The flaw was patched on May 13 and ini…
A threat actor obtained a highly sensitive API secret for ConnectWise Cloud Backup (formerly SkyKick) and used it to sign in to customers' Microsoft 365 tenants, forcing ConnectWise to suspend its Cloud Backup, SaaS Security and Cloud Management services. Huntress saw sign-in activity from the malicious infrastructure across almost 1,000 …
A Chinese-speaking attacker has reportedly compromised hundreds of websites worldwide by abusing Cairn, an AI-driven penetration-testing tool, to automate the attacks. Reported victims include large industrial and consumer brands such as John Deere, SharkNinja and engine manufacturer Cummins, from which the attacker is said to have looted…
Researchers describe WP2Shell, a chain of two WordPress core flaws, CVE-2026-63030 and CVE-2026-60137, that lets unauthenticated attackers progress from public REST API endpoints to remote code execution. It affects default installations with no third-party plugin required. Public exploit code exists and exploitation attempts have been ob…
The paid WordPress SEO plugin Rank Math PRO was hit by a supply chain attack. Copies of version 3.0.123 downloaded from the vendor's site or delivered as updates between October 15, 2026 20:02 UTC and October 16, 2026 07:12 UTC contained malware (securityweek.com, thehackernews.com, bleepingcomputer.com). Any site that installed and activ…
Microsoft Threat Intelligence reports active exploitation of CVE-2026-73570, a command injection flaw in Zimbra Collaboration Suite that allows unauthenticated, zero-click compromise of internet-facing email servers. Attackers deployed webshells, escalated privileges, harvested authentication secrets and staged mailbox data across organiz…
The US Department of Defense has confirmed a breach of the Defense Manpower Data Center (DMDC), one of its main personnel data repositories. The breach exposed sensitive data on roughly 2.76 million people plus about 294,000 deceased individuals. Unauthorised users reportedly accessed files between October 2025 and 16 July 2026, and the i…
In August 2026, Manchester Airports Group (MAG) disclosed a data breach affecting its services. The FulcrumSec hacking group later claimed the incident and published data relating to 8.8M customers of Manchester, Stansted and East Midlands airports. The leaked data includes email addresses and phone numbers, along with airport service rec…
A new dark web identity theft service called Nexus, advertised on the Russian cybercrime forum Exploit on Aug. 31, 2026, is selling scans of more than 153 million driver's licenses from the US and Canada. It also lists over 10 million ID cards, 3 million travel documents and 579,000 medical cards. KrebsOnSecurity's analysis points to the …
Microsoft released updates for at least 974 vulnerabilities in Windows and other software, its largest Patch Tuesday ever. The previous record was 570 fixes in July. The 2026 total now exceeds 2,600, more than double the 2020 record year (1,245), with three months still to go. Microsoft and other large vendors, including Adobe, Cisco, Goo…
Dutch authorities arrested a 24-year-old, reportedly Pepijn van der Stap (alias "Umbreon"), around Sept. 16, 2026 on suspicion of aiding data thefts and extortions by ShinyHunters. Van der Stap was previously convicted in 2023 for data theft and extortion. Days after the arrest, remaining ShinyHunters members escalated, breaching the FBI …
A coordinated attack on the operational technology behind supermarket refrigeration hit hundreds of stores in France from the night of 11-12 October 2026. Intermarché/Netto reported at least 300 affected shops, Coopérative U more than 100 and Carrefour 80, with Monoprix, E.Leclerc and Auchan also reporting impacted stores. Per BFM TV, att…
Mandiant and GTIG attribute exploitation of the critical BeyondTrust Remote Support zero-day CVE-2026-102764 to Armory Castle (formerly tracked as UNC5221), a likely Chinese government-backed espionage group. BeyondTrust dates the first known exploitation to Aug. 29 and says it detected and contained the activity Sept. 28. Only a small nu…
Attackers are actively targeting a critical, maximum-severity server-side request forgery (SSRF) vulnerability in SonicWall SMA 1000 appliances. Dark Reading describes this as a familiar and unwelcome position for SonicWall customers, as the vendor's remote access products have repeatedly been targeted. The available excerpt does not give…