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WinRAR Zero-Day Under Active Exploitation – Update to Latest Version Immediately

WinRAR Zero-Day Under Active Exploitation – Update to Latest Version Immediately

Aug 11, 2025 Zero-Day / Vulnerability
The maintainers of the WinRAR file archiving utility have released an update to address an actively exploited zero-day vulnerability. Tracked as CVE-2025-8088 (CVSS score: 8.8), the issue has been described as a case of path traversal affecting the Windows version of the tool that could be exploited to obtain arbitrary code execution by crafting malicious archive files. "When extracting a file, previous versions of WinRAR, Windows versions of RAR, UnRAR, portable UnRAR source code and UnRAR.dll can be tricked into using a path, defined in a specially crafted archive, instead of a specified path," WinRAR said in an advisory. Anton Cherepanov, Peter Kosinar, and Peter Strycek from ESET have been credited for discovering and reporting the security defect, which has been addressed in WinRAR version 7.13 released on July 30, 2025. The development is the second time a WinRAR security vulnerability has been weaponized in the wild in as many years. In 2023, another vulnerabil...
New Win-DDoS Flaws Let Attackers Turn Public Domain Controllers into DDoS Botnet via RPC, LDAP

New Win-DDoS Flaws Let Attackers Turn Public Domain Controllers into DDoS Botnet via RPC, LDAP

Aug 10, 2025 Vulnerability / Network Security
A novel attack technique could be weaponized to rope thousands of public domain controllers (DCs) around the world to create a malicious botnet and use it to conduct powerful distributed denial-of-service (DDoS) attacks. The approach has been codenamed Win-DDoS by SafeBreach researchers Or Yair and Shahak Morag, who presented their findings at the DEF CON 33 security conference today. "As we explored the intricacies of the Windows LDAP client code, we discovered a significant flaw that allowed us to manipulate the URL referral process to point DCs at a victim server to overwhelm it," Yair and Morag said in a report shared with The Hacker News. "As a result, we were able to create Win-DDoS, a technique that would enable an attacker to harness the power of tens of thousands of public DCs around the world to create a malicious botnet with vast resources and upload rates. All without purchasing anything and without leaving a traceable footprint." In transforming...
Researchers Detail Windows EPM Poisoning Exploit Chain Leading to Domain Privilege Escalation

Researchers Detail Windows EPM Poisoning Exploit Chain Leading to Domain Privilege Escalation

Aug 10, 2025 Vulnerability / Endpoint Security
Cybersecurity researchers have presented new findings related to a now-patched security issue in Microsoft's Windows Remote Procedure Call (RPC) communication protocol that could be abused by an attacker to conduct spoofing attacks and impersonate a known server. The vulnerability, tracked as CVE-2025-49760 (CVSS score: 3.5), has been described by the tech giant as a Windows Storage spoofing bug. It was fixed in July 2025 as part of its monthly Patch Tuesday update. Details of the security defect were shared by SafeBreach researcher Ron Ben Yizhak at the DEF CON 33 security conference this week. "External control of file name or path in Windows Storage allows an authorized attacker to perform spoofing over a network," the company said in an advisory released last month. The Windows RPC protocol utilizes universally unique identifiers (UUIDs) and an Endpoint Mapper (EPM) to enable the use of dynamic endpoints in client-server communications, and connect an RPC clien...
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Zscaler ThreatLabz 2026 VPN Risk Report with Cybersecurity Insiders

websiteZscalerAI Security / Network Security
VPN Risk Report reveals attackers using AI to move at machine speed, leaving legacy VPNs exposed.
Linux-Based Lenovo Webcams’ Flaw Can Be Remotely Exploited for BadUSB Attacks

Linux-Based Lenovo Webcams’ Flaw Can Be Remotely Exploited for BadUSB Attacks

Aug 09, 2025 Vulnerability / Hardware Security
Cybersecurity researchers have disclosed vulnerabilities in select model webcams from Lenovo that could turn them into BadUSB attack devices. "This allows remote attackers to inject keystrokes covertly and launch attacks independent of the host operating system," Eclypsium researchers Paul Asadoorian, Mickey Shkatov, and Jesse Michael said in a report shared with The Hacker News. The vulnerabilities have been codenamed BadCam (aka CVE-2025-4371 ) by the firmware security company. The findings were presented at the DEF CON 33 security conference today. The development likely marks the first time it has been demonstrated that threat actors who gain control of a Linux-based USB peripheral that's already attached to a computer can weaponize it for malicious intent. In a hypothetical attack scenario, an adversary can take advantage of the vulnerability to send a victim a backdoored webcam, or attach it to a computer if they are able to secure physical access, and remot...
Researchers Reveal ReVault Attack Targeting Dell ControlVault3 Firmware in 100+ Laptop Models

Researchers Reveal ReVault Attack Targeting Dell ControlVault3 Firmware in 100+ Laptop Models

Aug 09, 2025 Vulnerability / Hardware Security
Cybersecurity researchers have uncovered multiple security flaws in Dell's ControlVault3 firmware and its associated Windows APIs that could have been abused by attackers to bypass Windows login, extract cryptographic keys, as well as maintain access even after a fresh operating system install by deploying undetectable malicious implants into the firmware. The vulnerabilities have been codenamed ReVault by Cisco Talos. More than 100 models of Dell laptops running Broadcom BCM5820X series chips are affected. There is no evidence that the vulnerabilities have been exploited in the wild. Industries that require heightened security when logging in, via smart card readers or near-field communication (NFC) readers, are likely to use ControlVault devices in their settings. ControlVault is a hardware-based security solution that offers a secure way to store passwords, biometric templates, and security codes within the firmware. Attackers can chain the vulnerabilities, which were pres...
Researchers Uncover GPT-5 Jailbreak and Zero-Click AI Agent Attacks Exposing Cloud and IoT Systems

Researchers Uncover GPT-5 Jailbreak and Zero-Click AI Agent Attacks Exposing Cloud and IoT Systems

Aug 09, 2025 Generative AI / Vulnerability
Cybersecurity researchers have uncovered a jailbreak technique to bypass ethical guardrails erected by OpenAI in its latest large language model (LLM) GPT-5 and produce illicit instructions. Generative artificial intelligence (AI) security platform NeuralTrust said it combined a known technique called Echo Chamber with narrative-driven steering to trick the model into producing undesirable responses. "We use Echo Chamber to seed and reinforce a subtly poisonous conversational context, then guide the model with low-salience storytelling that avoids explicit intent signaling," security researcher Martí Jordà said . "This combination nudges the model toward the objective while minimizing triggerable refusal cues." Echo Chamber is a jailbreak approach that was detailed by the company back in June 2025 as a way to deceive an LLM into generating responses to prohibited topics using indirect references, semantic steering, and multi-step inference. In recent weeks, the...
CyberArk and HashiCorp Flaws Enable Remote Vault Takeover Without Credentials

CyberArk and HashiCorp Flaws Enable Remote Vault Takeover Without Credentials

Aug 09, 2025 Vulnerability / Enterprise Security
Cybersecurity researchers have discovered over a dozen vulnerabilities in enterprise secure vaults from CyberArk and HashiCorp that, if successfully exploited, can allow remote attackers to crack open corporate identity systems and extract enterprise secrets and tokens from them.  The 14 vulnerabilities, collectively named Vault Fault , affect CyberArk Secrets Manager, Self-Hosted, and Conjur Open Source and HashiCorp Vault, according to a report from an identity security firm Cyata. Following responsible disclosure in May 2025, the flaws have been addressed in the following versions - CyberArk Secrets Manager and Self-Hosted 13.5.1 and 13.6.1 CyberArk Conjur Open Source 1.22.1 HashiCorp Vault Community Edition 1.20.2 or Vault Enterprise 1.20.2, 1.19.8, 1.18.13, and 1.16.24 These include authentication bypasses, impersonation, privilege escalation bugs, code execution pathways, and root token theft. The most severe of the issues allows for remote code execution, allowing a...
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