Notícias

The exploitation of the authentication bypass vulnerability started two days after patches were released. The post Fresh SmarterMail Flaw Exploited for Admin Access appeared first on SecurityWeek.

Similar to recent FortiCloud single sign-on (SSO) login vulnerabilities, the attacks bypass authentication. The post Fortinet Confirms FortiCloud SSO Exploitation Against Patched Devices appeared first on SecurityWeek.

Similar to recent FortiCloud single sign-on (SSO) login vulnerabilities, the attacks bypass authentication. The post Fortinet Confirms FortiCloud SSO Exploitation Against Patched Devices appeared first on SecurityWeek.

Cisco has fixed a critical remote code execution vulnerability (CVE-2026-20045) in some of its unified communications solutions that's being targeted by attackers in the wild, the company announced on Wednesday via a security advisory. About CVE-2026-20045 CVE-2026-20045 is a code injection vulnerability stemming from improper validation of user-supplied input in HTTP requests. “An attacker could exploit this vulnerability by sending a sequence of crafted HTTP requests to the web-based management interface of an affected device. … More → The post RCE flaw in Cisco enterprise communications products probed by attackers (CVE-2026-20045) appeared first on Help Net Security.

Browser extensions are a high-risk attack vector for enterprises, allowing threat actors to bypass traditional security controls and gain a foothold on corporate endpoints. Case in point: A recently identified malicious extension called NexShield proves that a single user install from an official and nominally safe online marketplace can escalate into full remote access. Huntress researchers found that it downloads a previously undocumented Windows remote access trojan (RAT) onto domain-joined machines, which are “typically corporate … More → The post Fake browser crash alerts turn Chrome extension into enterprise backdoor appeared first on Help Net Security.

Resecurity has identified PDFSIDER malware that exploits the legitimate PDF24 App to covertly steal data and allow remote access. Learn how this APT-level campaign targets corporate networks through spear-phishing and encrypted communications.

Clear and obvious name of the exploitation technique can create a false sense of familiarity, even if its true potential was never researched, the technique itself is never mentioned and payloads are limited to a couple of specific examples. This research focuses on two such techniques for Code Injection and SSTI. submitted by /u/vladko312 [link] [comments]

Cisco has finally shipped security updates for its Email Security Gateway and Secure Email and Web Manager devices, which fix CVE-2025-20393, a vulnerability in the devices' AsyncOS that has been exploited as a zero-day by suspected Chinese attackers since at least late November 2025. The company revealed the flaw's existence and in-the-wild exploitation on December 17, 2025, and urged customers to check whether their appliances had been breached and to rebuild them in case of … More → The post Cisco fixes AsyncOS vulnerability exploited in zero-day attacks (CVE-2025-20393) appeared first on Help Net Security.

Fortinet warns CVE-2025-64155 is actively exploited for unauthenticated RCE on on-prem FortiSIEM via TCP 7900. The post Fortinet Warns of Active FortiSIEM RCE Exploitation appeared first on eSecurity Planet.

Abstract This paper reconceptualizes cyberwar and cyberwarfare to include non-kinetic cyber operations as legitimate and deliberate forms of warfare, rather than as peripheral or sub-threshold activities. It examines the evolving use of cyberwarfare as a modality of low-intensity conflict in which foreign adversaries exploit legal ambiguity and internal political vulnerabilities within democracies such as the […]