Zero-Day
Russian hackers exploit Exchange OWA zero-day for long-term mailbox access
The Russian state-sponsored hacking group Laundry Bear, also known as Void Blizzard, is exploiting an Exchange Outlook Web Access vulnerability in email campaigns to deliver a sophisticated backdoor called OWAReaper. Email security company Proofpoint spotted the activity a week ago targeting various organizations, including government entities in the U.S. and Europe, and companies in the […]
OpenAI models used Artifactory zero-days to escape to the internet
JFrog has confirmed that OpenAI models exploited zero-day vulnerabilities in self-hosted Artifactory servers to help escape an isolated testing environment and gain access to the internet before attacking Hugging Face. The vulnerabilities were exploited during the incident in which OpenAI models hacked Hugging Face’s production infrastructure to steal answers for a cybersecurity benchmark. OpenAI disclosed […]
Arista patches VeloCloud Orchestrator zero-day exploited in attacks
Arista has patched a maximum-severity command injection vulnerability in on-premises VeloCloud Orchestrator deployments that is being actively exploited in attacks. The vulnerability, tracked as CVE-2026-16812, is an unauthenticated OS command injection flaw with severity scores of 10.0, the maximum score that can be given to flaws. VeloCloud Orchestrator, also known as VCO, is a centralized […]
Russian hackers exploit Zimbra zero-click flaw for email theft
CISA is warning that the Russian state-sponsored hacking group Laundry Bear, also known as Void Blizzard, is targeting organizations using Zimbra Collaboration email servers by combining phishing attacks with the exploitation of a now-patched Zimbra vulnerability. According to CISA, Laundry Bear has targeted and compromised users in organizations associated with the Defense Industrial Base (DIB), […]
Check Point warns of SmartConsole zero-day exploited in attacks
Israeli cybersecurity firm Check Point Software has addressed an actively exploited zero-day flaw in the company’s SmartConsole graphical user interface (GUI) admin panel. Tracked as CVE-2026-16232, this authentication bypass vulnerability allows unauthenticated attackers to obtain an application login token that can be used to authenticate with administrator privileges. After gaining access to a vulnerable Security Management […]
South Korea discloses data breach impacting diplomats worldwide
South Korea disclosed that hackers breached the National Diplomatic Academy’s online education system for ten months and stole personal information belonging to current and former employees of the Ministry of Foreign Affairs (MFA), including overseas diplomats. The incident occurred in April 2025 after an unknown threat actor exploited a vulnerability in the Academy’s server. It […]
Windows LegacyHive zero-day flaw gets free, unofficial patches
Free unofficial patches are available for a recently disclosed Windows zero-day flaw that allows attackers to escalate privileges on up-to-date Windows systems. The vulnerability (dubbed LegacyHive and without a CVE ID for easy tracking) was found by a security researcher using the “Nightmare Eclipse” handle in the Windows User Profile Service. Nightmare Eclipse disclosed it the day […]
SonicWall SMA1000 flaws exploited as zero-days to push custom malware
Two recently disclosed SonicWall SMA1000 vulnerabilities were exploited in zero-day attacks for weeks, allowing threat actors to install custom malware on vulnerable VPN appliances. Last week, SonicWall warned that threat actors were actively exploiting two previously undisclosed vulnerabilities in an exploit chain that affected SMA1000 Secure Mobile Access appliances. The flaws, tracked as CVE-2026-15409, a critical server-side […]
New Windows LegacyHive zero-day gives hackers admin privileges
A security researcher using the “Nightmare Eclipse” handle has released a Windows zero-day exploit dubbed LegacyHive that allows attackers to escalate privileges on up-to-date Windows systems. Nightmare Eclipse published a proof-of-concept (PoC) exploit hours after Microsoft released its July 2026 Patch Tuesday updates, saying that it abuses a security vulnerability in the Windows User Profile […]
Progress confirms ShareFile zero-day flaw behind Storage Zone shutdown
Progress Software has confirmed that a high-severity zero-day vulnerability is behind the emergency shutdown of ShareFile Storage Zone Controllers last week and has released security updates to patch the flaw. Last week, Progress urged customers using ShareFile Storage Zone Controllers to immediately shut down their Windows servers after receiving a warning of a “credible external security threat.” At the […]