Geek-Guy.com

Tag: zeroday

CVE-2025-15467: OpenSSL Vulnerability Leads to Denial-of-Service, Remote Code Execution

Just as organizations were working to patch the Microsoft Office zero-day (CVE-2026-21509), the cybersecurity world is confronted with another serious threat. OpenSSL disclosed a high-severity stack buffer overflow issue that can trigger denial-of-service (DoS) conditions and, under specific circumstances, enable remote code execution (RCE). Tracked as CVE-2025-15467, the vulnerability was promptly patched by the vendor…

CVE-2025-15467: OpenSSL Vulnerability Leads to Denial-of-Service, Remote Code Execution

Just as organizations were working to patch the Microsoft Office zero-day (CVE-2026-21509), the cybersecurity world is confronted with another serious threat. OpenSSL disclosed a high-severity stack buffer overflow issue that can trigger denial-of-service (DoS) conditions and, under specific circumstances, enable remote code execution (RCE). Tracked as CVE-2025-15467, the vulnerability was promptly patched by the vendor…

CVE-2025-15467: OpenSSL Vulnerability Leads to Denial-of-Service, Remote Code Execution

Just as organizations were working to patch the Microsoft Office zero-day (CVE-2026-21509), the cybersecurity world is confronted with another serious threat. OpenSSL disclosed a high-severity stack buffer overflow issue that can trigger denial-of-service (DoS) conditions and, under specific circumstances, enable remote code execution (RCE). Tracked as CVE-2025-15467, the vulnerability was promptly patched by the vendor…

CVE-2026-24858: FortiOS SSO Zero-Day Exploited in the Wild

The year 2026 has started with an avalanche of zero-day vulnerabilities, causing a menace for cyber defenders. Right after Microsoft Office zero-day (CVE-2026-21509) and a critical flaw in Cisco products (CVE-2026-20045) that were repeatedly exploited for in-the-wild attacks, Fortinet has disclosed another serious issue, immediately drawing the attention of threat actors. Identified as CVE‑2026‑24858, the…

CVE-2026-24858: FortiOS SSO Zero-Day Exploited in the Wild

The year 2026 has started with an avalanche of zero-day vulnerabilities, causing a menace for cyber defenders. Right after Microsoft Office zero-day (CVE-2026-21509) and a critical flaw in Cisco products (CVE-2026-20045) that were repeatedly exploited for in-the-wild attacks, Fortinet has disclosed another serious issue, immediately drawing the attention of threat actors. Identified as CVE‑2026‑24858, the…

CVE-2026-24858: FortiOS SSO Zero-Day Exploited in the Wild

The year 2026 has started with an avalanche of zero-day vulnerabilities, causing a menace for cyber defenders. Right after Microsoft Office zero-day (CVE-2026-21509) and a critical flaw in Cisco products (CVE-2026-20045) that were repeatedly exploited for in-the-wild attacks, Fortinet has disclosed another serious issue, immediately drawing the attention of threat actors. Identified as CVE‑2026‑24858, the…

CVE-2026-24858: FortiOS SSO Zero-Day Exploited in the Wild

The year 2026 has started with an avalanche of zero-day vulnerabilities, causing a menace for cyber defenders. Right after Microsoft Office zero-day (CVE-2026-21509) and a critical flaw in Cisco products (CVE-2026-20045) that were repeatedly exploited for in-the-wild attacks, Fortinet has disclosed another serious issue, immediately drawing the attention of threat actors. Identified as CVE‑2026‑24858, the…

CVE-2026-24858: FortiOS SSO Zero-Day Exploited in the Wild

The year 2026 has started with an avalanche of zero-day vulnerabilities, causing a menace for cyber defenders. Right after Microsoft Office zero-day (CVE-2026-21509) and a critical flaw in Cisco products (CVE-2026-20045) that were repeatedly exploited for in-the-wild attacks, Fortinet has disclosed another serious issue, immediately drawing the attention of threat actors. Identified as CVE‑2026‑24858, the…

CVE-2026-24858: FortiOS SSO Zero-Day Exploited in the Wild

The year 2026 has started with an avalanche of zero-day vulnerabilities, causing a menace for cyber defenders. Right after Microsoft Office zero-day (CVE-2026-21509) and a critical flaw in Cisco products (CVE-2026-20045) that were repeatedly exploited for in-the-wild attacks, Fortinet has disclosed another serious issue, immediately drawing the attention of threat actors. Identified as CVE‑2026‑24858, the…

CVE-2026-24858: FortiOS SSO Zero-Day Exploited in the Wild

The year 2026 has started with an avalanche of zero-day vulnerabilities, causing a menace for cyber defenders. Right after Microsoft Office zero-day (CVE-2026-21509) and a critical flaw in Cisco products (CVE-2026-20045) that were repeatedly exploited for in-the-wild attacks, Fortinet has disclosed another serious issue, immediately drawing the attention of threat actors. Identified as CVE‑2026‑24858, the…

CVE-2026-21509: Actively Exploited Microsoft Office Zero-Day Forces Emergency Patch

Shortly after its January Patch Tuesday release, addressing 114 vulnerabilities, including a zero-day in Windows Desktop Manager (CVE-2026-20805), Microsoft rushed out an emergency out-of-band update to fix another bug under active exploitation. This time, attackers are targeting CVE-2026-21509, a Microsoft Office zero-day that allows threat actors to bypass built-in security features.  In view of the…

CVE-2026-21509: Actively Exploited Microsoft Office Zero-Day Forces Emergency Patch

Shortly after its January Patch Tuesday release, addressing 114 vulnerabilities, including a zero-day in Windows Desktop Manager (CVE-2026-20805), Microsoft rushed out an emergency out-of-band update to fix another bug under active exploitation. This time, attackers are targeting CVE-2026-21509, a Microsoft Office zero-day that allows threat actors to bypass built-in security features.  In view of the…

CVE-2026-21509: Actively Exploited Microsoft Office Zero-Day Forces Emergency Patch

Shortly after its January Patch Tuesday release, addressing 114 vulnerabilities, including a zero-day in Windows Desktop Manager (CVE-2026-20805), Microsoft rushed out an emergency out-of-band update to fix another bug under active exploitation. This time, attackers are targeting CVE-2026-21509, a Microsoft Office zero-day that allows threat actors to bypass built-in security features.  In view of the…

CVE-2026-21509: Actively Exploited Microsoft Office Zero-Day Forces Emergency Patch

Shortly after its January Patch Tuesday release, addressing 114 vulnerabilities, including a zero-day in Windows Desktop Manager (CVE-2026-20805), Microsoft rushed out an emergency out-of-band update to fix another bug under active exploitation. This time, attackers are targeting CVE-2026-21509, a Microsoft Office zero-day that allows threat actors to bypass built-in security features.  In view of the…

CVE-2026-21509: Actively Exploited Microsoft Office Zero-Day Forces Emergency Patch

Shortly after its January Patch Tuesday release, addressing 114 vulnerabilities, including a zero-day in Windows Desktop Manager (CVE-2026-20805), Microsoft rushed out an emergency out-of-band update to fix another bug under active exploitation. This time, attackers are targeting CVE-2026-21509, a Microsoft Office zero-day that allows threat actors to bypass built-in security features.  In view of the…

CVE-2026-21509: Actively Exploited Microsoft Office Zero-Day Forces Emergency Patch

Shortly after its January Patch Tuesday release, addressing 114 vulnerabilities, including a zero-day in Windows Desktop Manager (CVE-2026-20805), Microsoft rushed out an emergency out-of-band update to fix another bug under active exploitation. This time, attackers are targeting CVE-2026-21509, a Microsoft Office zero-day that allows threat actors to bypass built-in security features.  In view of the…

CVE-2026-21509: Actively Exploited Microsoft Office Zero-Day Forces Emergency Patch

Shortly after its January Patch Tuesday release, addressing 114 vulnerabilities, including a zero-day in Windows Desktop Manager (CVE-2026-20805), Microsoft rushed out an emergency out-of-band update to fix another bug under active exploitation. This time, attackers are targeting CVE-2026-21509, a Microsoft Office zero-day that allows threat actors to bypass built-in security features.  In view of the…