Security Affairs
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"OpenSSL fixes HollowByte Memory Exhausting Bug."
Views expressed in this cybersecurity, cyber crime update are those of the reporters and correspondents. Accessed on 18 July 2026, 2235 UTC.
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Russ Roberts (https://www.hawaiicybersecurityjournal.net).
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Today
5 TTPs
by Pierluigi Paganini / 3h
Okta disclosed HollowByte, an 11-byte OpenSSL flaw that lets remote attackers exhaust server memory and trigger denial-of-service attacks. Okta’s Red Team disclosed a denial-of-service vulnerability in OpenSSL they named HollowByte, and the attack payload is exactly 11 bytes. A remote, unauthenticated attacker sends that payload and the server allocates up to 131 KB of memory before the TLS hands
Researchers found China’s Daxin rootkit and a new Stupig backdoor on a Taiwan firm’s network, suggesting a stealthy intrusion dating back to 2013. Symantec’s Threat Hunter Team found Daxin running on a compromised host at a Taiwan-based subsidiary of a multinational high-tech manufacturer in 2026. Daxin is a Windows kernel-mode rootkit that Symantec first documented in March 2022, with evidence o
3 TTPs
by Pierluigi Paganini / 10h
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Fortinet FortiSandbox and Microsoft SharePoint flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Fortinet FortiSandbox and Microsoft SharePoint flaws to its Known Exploited Vulnerabilities (KEV) catalog . CVE-2026-25089 (CVSS score of 9.8) Fortinet FortiSand
Yesterday
Ernst & Young (EY) disclosed a data breach after attackers compromised a third-party IT support system containing client documents and tax information. Ernst & Young (EY) is disclosed a data breach linked to a compromised third-party support ticket system used by its IT teams. The platform stored support requests that may have included documents containing client tax information. “EY uses a third
A cyberattack hit one of Japan’s largest food companies, Nichirei, disrupting logistics and shipments. The company is gradually restoring operations. Nichirei is one of Japan’s largest food companies, best known for its frozen food business. Founded in 1942 and headquartered in Tokyo, it operates globally through dozens of subsidiaries. The food giant confirmed that the system outage reported on
Jul 16, 2026
Russian-speaking UAT-11795 spreads trojanized Zoom, Webex, and MobaXterm installers to deliver Starland RAT and the WLDR memory-only implant. Cisco Talos researchers published a detailed technical report on July 16 disclosing UAT-11795, a financially motivated, Russian-speaking threat actor that has been running a malware campaign against users in the United States and Europe since at least June
by Pierluigi Paganini / 1d
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds KNX Association KNX Protocol Connection Authorization Option 1 and Oracle flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added SonicWall and Microsoft flaws to its Known Exploited Vulnerabilities (KEV) catalog . The flaws added to the catalog are: CVE-2023-4346
Two members of the Scattered Spider cybercrime group received jail sentences in the UK for the 2024 cyberattack on Transport for London. A UK court sentenced two Scattered Spider members, Thalha Jubair (20) and Owen Flowers (18), for their role in the 2024 cyberattack on Transport for London (TfL). Transport for London (TfL) is a local government body responsible for most of the transport network
TuxBot v3, an AI-built IoT botnet for 17 architectures, shipped with LLM bugs and safety disclaimers the developer never removed. Palo Alto Networks’ Unit 42 identified a previously undocumented modular IoT botnet framework called TuxBot v3 Evolution, and it comes with an unusual detail: the developer used a large language model to write significant portions of the code, and the LLM’s safety disc
Jul 15, 2026
Chinese actors used Claude Code and DeepSeek to automate attacks that breached government systems and targeted financial firms. Hunt.io researchers stumbled onto an active intrusion campaign in June 2026 while pivoting on known TencShell command-and-control infrastructure. A single HTTP header fingerprint on port 1111 led them to 13 Hong Kong-based servers and, on one of them, an open directory c
Zoom warns of a critical Windows flaw, tracked as CVE-2026-53412, that could let attackers take over accounts without authentication. Zoom has fixed a critical Windows vulnerability, tracked as CVE-2026-53412 (CVSS score of 9.8) that could allow unauthenticated attackers to hijack user accounts. The flaw affects older versions of Workplace, the Windows VDI Client, and the Meeting SDK for Windows.
8 TTPs
by Pierluigi Paganini / 3d
US and allies warn of Russian APT groups targeting routers and network devices to compromise critical infrastructure worldwide. The US and allied governments warn that Russian state-sponsored APT groups are scanning and exploiting poorly secured network devices, especially routers, to access critical infrastructure. Groups linked to FSB Center 16, including Berserk Bear , Energetic Bear , Ghost B
2 TTPs
by Pierluigi Paganini / 3d
LegacyHive PoC exposes a Windows Privilege Escalation flaw affecting fully patched Windows desktop and server systems. Just hours after Microsoft’s July 2026 Patch Tuesday , security researcher Nightmare Eclipse, also known as Chaotic Eclipse , published a new Windows zero-day proof-of-concept called LegacyHive. This time, the target is the Windows User Profile Service (ProfSvc), and unlike the h
AsyncAPI npm packages with 2M weekly downloads were compromised, spreading malware with info-stealing, crypto-theft and RAT capabilities. OX Security researchers disclosed on July 14 that the AsyncAPI npm organization was compromised, with malicious code injected into four packages that together account for over 2 million weekly downloads. The affected versions are @asyncapi/generator 3.3.1, @asy
5 TTPs
by Pierluigi Paganini / 3d
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds SonicWall and Microsoft flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added SonicWall and Microsoft flaws to its Known Exploited Vulnerabilities (KEV) catalog . The flaws added to the catalog are: CVE-2026-15409 SonicWall SMA1000 Appliances Server-Side Request
Jul 14, 2026
4 TTPs
by Pierluigi Paganini / 3d
SonicWall warns of active attacks exploiting two SMA 1000 zero-days, including a flaw enabling arbitrary command execution. SonicWall confirmed the active exploitation of two zero-day vulnerabilities affecting Secure Mobile Access (SMA) 1000 appliances. The vulnerabilities were internally discovered and reported by Adam Babis of the company’s PSIRT. The company investigated multiple incidents ind
Patch Tuesday: Microsoft fixes a record 621 CVEs, including 2 exploited zero-days and critical flaws affecting SharePoint, RDP, Hyper-V, and AD FS. Microsoft’s July 2026 Patch Tuesday is, by a significant margin, the largest single-month security release in the company’s history. The Zero Day Initiative counted 621 new Microsoft CVEs for the month, and the year-to-date total already exceeds every
U.S. sanctions hit VPN provider 1VPNS and a cryptor seller for enabling ransomware gangs behind billions in losses to critical infrastructure. The U.S. Treasury’s Office of Foreign Assets Control sanctioned two individuals and one entity on July 13 for supplying tools and infrastructure to ransomware groups that have caused billions of dollars in losses to American businesses and critical infrast
Huntress found an AI-generated PowerShell script used for AD reconnaissance, showing attackers are using AI to create custom, evasive tools. During an incident response investigation on June 3,
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