Cybersecurity Brief – 2026-07-18

Sat, 18 Jul 2026 00:00:00 +0000

Major Incidents or Breaches

Abbott Laboratories is investigating two separate cybersecurity incidents, confirming unauthorized access to internal legacy Exact Sciences systems in its Cancer Diagnostics business, amid extortion claims. The company is also probing a second, unrelated cyber event ^[12].
Ernst & Young disclosed a data breach after IT personnel’s use of a compromised third-party support ticket system resulted in customer data exposure ^[14].
The Japanese frozen food company Nichirei experienced a cyberattack that forced system disconnection on July 13, disrupting operations. Restoration efforts are underway ^[29].
DigiCert’s April 2026 security incident has been attributed to a threat activity cluster known as CylindricalCanine, specifically a subgroup called GoldenEyeDog, which stole code-signing certificates ^[5].

Newly Discovered Vulnerabilities

Two critical vulnerabilities in WordPress Core, now assigned CVE IDs, allow unauthenticated attackers to execute arbitrary code. A working proof-of-concept has been published, and a persistent-object-cache condition has been identified ^[1].
The HollowByte vulnerability in OpenSSL allows unauthenticated attackers to trigger a denial-of-service by sending an 11-byte TLS request, causing the server to allocate up to 131 KB of memory per request until the process restarts. This affects glibc-based systems ^[2]^[13].
A zero-day exploit named LegacyHive has been released, enabling privilege escalation to administrator level on fully updated Windows systems ^[16].
A security flaw in Shark robot vacuums exposes device cameras, home mapping data, and Wi-Fi passwords, potentially allowing remote access to multiple vacuums if one is compromised ^[31].
Two zero-day vulnerabilities in SonicWall’s Secure Mobile Access (SMA) appliances have been exploited by threat actors to gain root-level access ^[19].

Notable Threat Actor Activity

Seven malicious npm packages targeting the Vite frontend ecosystem have been discovered using blockchain-based command and control to deliver a remote access trojan, forming part of a software supply chain attack ^[3].
The NadMesh botnet, written in Go, is actively scanning for exposed AI services to harvest cloud credentials and Kubernetes tokens, with operators claiming to have collected thousands of AWS keys ^[4].
North Korean threat actors associated with the Contagious Interview campaign are using steganography in SVG files to deliver malware via fake coding tests, aligning with OtterCookie activity ^[6].
The ACR Stealer infostealer is leveraging ClickFix-themed lures to exfiltrate browser credentials, session tokens, PDFs, Microsoft 365 documents, and OneDrive files from enterprise networks ^[10].
The newly identified GoSerpent malware has been deployed in espionage operations against Southeast Asian governments and diplomats since late 2025 ^[11].
Inc Ransomware operators have exploited SonicWall SMA zero-days in recent attacks ^[19].

Trends, Tools, or Tactics of Interest

Cybercriminals are increasingly seeking “clean” residential proxies and pairing them with advanced browser fingerprinting techniques to evade detection in carding operations ^[15].
Steganography in SVG images is being used by North Korean threat actors to conceal malware in recruitment-themed phishing campaigns ^[6].
Agentic defense strategies, including automated threat detection and remediation, are being incorporated into cloud security platforms to counter AI-driven attacks ^[22]^[26].
The use of blockchain-based command and control infrastructure is emerging in supply chain attacks, as seen in the malicious Vite npm package campaign ^[3].

Regulatory or Policy Developments Affecting the Security Industry

The European Commission has ordered Google to provide rival AI assistants with access to Android’s camera, microphone, on-screen content, and wake word capabilities, matching those available to Gemini ^[7].
Microsoft announced that Windows Server 2022 will reach the end of mainstream support in October 2026, transitioning to extended support with continued security updates for five years ^[17].
The Pentagon’s suspension of CMMC Phase 2 pauses third-party audits but does not remove the legal requirement for defense contractors to protect Controlled Unclassified Information (CUI) ^[28].
San Francisco’s City Attorney has issued cease-and-desist letters to Apple and Google demanding the removal of 13 AI-powered “nudify” face-swap apps from their app stores, citing concerns about misuse targeting women and girls ^[23].

Sources

Abbott probes two cyber incidents amid extortion claims - bleepingcomputer.com
Ernst & Young discloses data breach after support system hack - bleepingcomputer.com
Cyberattack Disrupts Operations of Japanese Frozen Food Giant Nichirei - securityweek.com
GoldenEyeDog Subgroup Linked to DigiCert Breach and Code-Signing Certificate Theft - thehackernews.com
New wp2shell WordPress Core Flaw Lets Unauthenticated Attackers Run Code - thehackernews.com
OpenSSL HollowByte Flaw Could Freeze Server Memory with 11-Byte TLS Requests - thehackernews.com
HollowByte DDoS flaw bloats OpenSSL server memory with 11-byte payload - bleepingcomputer.com
New Windows LegacyHive zero-day gives hackers admin privileges - bleepingcomputer.com
Shark vacuum flaw exposes cameras, home maps and Wi-Fi passwords - malwarebytes.com
Inc Ransomware Exploits SonicWall SMA Zero-Days - darkreading.com
Seven Malicious Vite npm Packages Use Blockchain C2 to Deliver a RAT - thehackernews.com
New NadMesh Botnet Hunts Exposed AI Services for Cloud Keys and Kubernetes Tokens - thehackernews.com
Fake Coding Tests Deliver OtterCookie-Aligned Malware Hidden in SVG Flag Images - thehackernews.com
ACR Stealer Uses ClickFix Lures to Steal Browser Tokens and Microsoft 365 Files - thehackernews.com
New GoSerpent Malware Targets Southeast Asian Governments and Diplomats for Espionage - thehackernews.com
Inside the Search for "Clean" Residential Proxies for Carding - bleepingcomputer.com
Google Bets 'Agentic Defense' Strategy Can Outpace Attackers - darkreading.com
Podcast: Broken Governance, Agentic AI, and the MindStone Agent Exclusive - securityweek.com
E.U. Orders Google to Open Android Mic, Camera and Screen to Rival AI Assistants - thehackernews.com
Windows Server 2022 reach end of mainstream support in 90 days - bleepingcomputer.com
Industry Reactions to Pentagon Suspending CMMC Phase 2: Feedback Friday - securityweek.com
San Francisco Demands Apple and Google Delete AI ‘Nudify’ Apps From App Stores - wired.com

NadMesh on DanSec Daily

Cybersecurity Brief – 2026-07-18

Major Incidents or Breaches

Newly Discovered Vulnerabilities

Notable Threat Actor Activity

Trends, Tools, or Tactics of Interest

Regulatory or Policy Developments Affecting the Security Industry

Sources