Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter CrashStealer: C++ macOS infostealer posing as crash reporter Lucide Proxy: Turning Student Web Proxies into DDoS Bots AsyncAPI npm organization compromised, 2M weekly downloads affected OkoBot: new sophisticated malware framework targets cryptocur

Ernst & Young (EY) is investigating a potential data breach that reportedly involves third-party support tickets. The company has not yet confirmed the scope or nature of the incident, nor has it publicly identified the third-party vendor involved.
The investigation follows claims of a compromise, though details regarding the type of data exposed or the number of individuals affected remain unverified. EY, a global professional services network, typically handles sensitive client and internal information, making any breach of its systems or those of its partners a significant concern.
This incident is one of several cybersecurity events reported recently. Japan's Nichirei, a major food company, also confirmed it was hit by a cyberattack, though specific details about that incident, such as the type of attack or its impact, were not immediately available.
Meanwhile, a 13-year-old China-linked malware, Daxin, has reportedly been found active on a manufacturer's network, indicating its continued use in sophisticated operations. The discovery suggests the malware, known for its stealth and persistence, may have resurfaced in Taiwan alongside a new backdoor.
In other developments, the U.S. CISA has updated its Known Exploited Vulnerabilities catalog to include several critical flaws. These additions include vulnerabilities in Fortinet FortiSandbox, Microsoft SharePoint, KNX Association KNX Protocol Connection Authorization Option 1, and Oracle products. CISA also added flaws affecting SonicWall and other Microsoft products to the catalog, urging organizations to patch these vulnerabilities promptly.
SonicWall specifically issued a warning about active exploitation of two zero-day vulnerabilities affecting its SMA 1000 series products. The company advised users to take immediate action to mitigate potential risks.
The npm package ecosystem has also seen a supply chain attack, with malware reportedly injected into AsyncAPI packages that collectively receive two million weekly downloads. This type of attack can widely distribute malicious code to developers and their projects.
Further, a new Russian campaign has been observed deploying the Starland RAT through fake Webex and Zoom installers, leveraging common communication tools to trick users. Similarly, a financially motivated campaign, identified by the Claude for-Chrome Extension-Bypass UAT-11795, is deploying a novel Starland RAT and a bespoke WLDR C2 implant.
In the realm of patching, July 2026 saw a record-setting Patch Tuesday, with 621 CVEs addressed in a single month, marking the largest update ever. This extensive update covered a wide array of software and systems, underscoring the ongoing challenge of managing software vulnerabilities.
Zoom recently fixed CVE-2026-53412, a critical account takeover bug, while OpenSSL addressed a memory exhaustion bug dubbed HollowByte. Separately, researchers unveiled a "Chaotic Eclipse" exploit affecting fully patched Windows systems, highlighting the persistent threat of sophisticated attacks even against updated environments.
In legal news, two members of the Scattered Spider group were sentenced to prison for their involvement in a cyberattack against Transport for London (TfL), which resulted in an estimated £29 million in damages. The U.S. Treasury also sanctioned a VPN provider and a cryptor seller, alleging their involvement in ransomware operations responsible for billions in losses.
A weakness has been identified in Tenda CP3 27.5.57.101. This issue affects some unknown processing of the file Net/NetCheckPing.cpp. This manipulation of the argument interface_name/host causes os command injection. The attack can be initiated remotely.
A security flaw has been discovered in Tenda CP3 27.5.57.101. This vulnerability affects the function SystemAsh of the file Apis/system.c of the component Kylin. The manipulation of the argument AlarmVoiceURL results in os command injection. It is possible to launch the attack remotely.

OpenAI has announced a $1 billion commitment to provide subsidized access to its Daybreak AI cybersecurity tools for under-resourced critical infrastructure defenders. The initiative, named Daybreak for Frontline Defenders, will offer AI models, training, and technical support over the next six months, prioritizing water and wastewater utilities, electric grid operators, and local government entities. This move aims to equip organizations with limited budgets and staff against increasingly sophisticated cyber threats.

Attackers are exploiting a new unpatched vulnerability in Magento Open Source and Adobe Commerce that lets them run malicious code on an online store's server without logging in, Dutch e-commerce security company Sansec said in an advisory published on September 5. Sansec, which discovered the flaw and named it StyleSmuggler, said attacks started on September 4. "Sansec is publishing early
In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and in the entire address space on 32-bit architectures.

Attackers are exploiting two new PaperCut flaws to steal credentials and gain privileged access in education-sector attacks across the U.S. and Europe. Attackers are exploiting two recelty disclosed PaperCut flaws, CVE-2026-81578 and CVE-2026-82078, in attacks targeting schools and other education organizations in the U.S. and Europe, as reported by TheHackerNews. Arctic Wolf researchers observed