Malicious RTF (Rich Text Format) documents are back in the news with the exploitation of CVE-2026-21509 by APT28. The malicious RTF documents BULLETEN_H.doc and Consultation_Topics_Ukraine(Final).doc mentioned in the news are RTF files (despite their .doc extension, a common trick used by threat actors). Here is a quick tip to extract URLs from RTF files. Use the following…
Tag: CVE202621509
AI, Exploits, Global Security News, Russia
Quick Howto: Extract URLs from RTF files, (Mon, Feb 9th)
Malicious RTF (Rich Text Format) documents are back in the news with the exploitation of CVE-2026-21509 by APT28. The malicious RTF documents BULLETEN_H.doc and Consultation_Topics_Ukraine(Final).doc mentioned in the news are RTF files (despite their .doc extension, a common trick used by threat actors). Here is a quick tip to extract URLs from RTF files. Use the following…
AI, Exploits, Global Security News, Russia
Quick Howto: Extract URLs from RTF files, (Mon, Feb 9th)
Malicious RTF (Rich Text Format) documents are back in the news with the exploitation of CVE-2026-21509 by APT28. The malicious RTF documents BULLETEN_H.doc and Consultation_Topics_Ukraine(Final).doc mentioned in the news are RTF files (despite their .doc extension, a common trick used by threat actors). Here is a quick tip to extract URLs from RTF files. Use the following…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, APT28, Blog, CERT-UA, CVE-2026-21509, CVEs, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Network Security, Russia
UAC-0001 (APT28) Attack Detection: russia-Backed Actor Actively Exploits CVE-2026-21509 Targeting Ukraine and the EU
Right after Microsoft disclosed an actively exploited Office zero-day (CVE-2026-21509) on January 26, 2026, CERT-UA reported UAC-0001 (APT28) leveraging the vulnerability in the wild. The russia-backed threat actor targeted organizations in Ukraine and the EU with malicious Office documents, and metadata shows one sample was created on January 27 at 07:43 UTC, illustrating the rapid…
AI, Apps, Blog, CVE, CVE-2025-15467, CVEs, Cybersecurity, Exploits, Global Security News, privacy, Risk Management, vulnerability
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…
AI, Apps, Blog, CVE, CVE-2025-15467, CVEs, Cybersecurity, Exploits, Global Security News, privacy, Risk Management, vulnerability
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…
AI, Apps, Blog, CVE, CVE-2025-15467, CVEs, Cybersecurity, Exploits, Global Security News, privacy, Risk Management, vulnerability
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…
AI, Apps, Blog, CVE, CVE-2025-15467, CVEs, Cybersecurity, Exploits, Global Security News, privacy, Risk Management, vulnerability
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…
AI, Apps, Blog, CVE, CVE-2025-15467, CVEs, Cybersecurity, Exploits, Global Security News, privacy, Risk Management, vulnerability
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…
AI, Apps, Blog, CVE, CVE-2025-15467, CVEs, Cybersecurity, Exploits, Global Security News, privacy, Risk Management, vulnerability
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…
AI, Apps, Blog, CVE, CVE-2025-15467, CVEs, Cybersecurity, Exploits, Global Security News, privacy, Risk Management, vulnerability
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…