Threat Intelligence Report — May 25, 2026 | 7 New KEVs · 133 Victims

Report Date: 2026-05-25

New KEVs: 7Ransomware Victims: 133

7 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. Microsoft products show the strongest concentration of risk signals this week. Threat intelligence sources this period reference Turla (Russia). Ransomware activity is moderate with 133 new victims posted to leak sites over the last 7 days, with Dragonforce posting the most victims.

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Threat Intelligence Report — May 24, 2026 | 7 New KEVs · 127 Victims

Report Date: 2026-05-24

New KEVs: 7Ransomware Victims: 127

7 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. Microsoft products show the strongest concentration of risk signals this week. Threat intelligence sources this period reference Turla (Russia). Ransomware activity is moderate with 127 new victims posted to leak sites over the last 7 days, with Qilin posting the most victims.

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Threat Intelligence Report — May 23, 2026 | 7 New KEVs · 128 Victims

Report Date: 2026-05-23

New KEVs: 7Critical CVEs: 5Ransomware Victims: 128

7 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. 5 additional critical-severity CVEs have been published to the NVD but not yet confirmed as exploited — Microsoft products show the strongest concentration of risk signals this week. Threat intelligence sources this period reference Turla (Russia). Ransomware activity is moderate with 128 new victims posted to leak sites over the last 7 days, with Qilin posting the most victims.

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Threat Intelligence Report — May 22, 2026 | 7 New KEVs · 125 Victims

Report Date: 2026-05-22

New KEVs: 7Critical CVEs: 5Ransomware Victims: 125

7 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. 5 additional critical-severity CVEs have been published to the NVD but not yet confirmed as exploited — Microsoft products show the strongest concentration of risk signals this week. Threat intelligence sources this period reference Turla (Russia). Ransomware activity is moderate with 125 new victims posted to leak sites over the last 7 days, with Qilin posting the most victims.

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Threat Intelligence Report — May 21, 2026 | 7 New KEVs · 137 Victims

Report Date: 2026-05-21

New KEVs: 7Critical CVEs: 5Ransomware Victims: 137

7 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. 5 additional critical-severity CVEs have been published to the NVD but not yet confirmed as exploited — Microsoft products show the strongest concentration of risk signals this week. Threat intelligence sources this period reference Turla (Russia). Ransomware activity is moderate with 137 new victims posted to leak sites over the last 7 days, with Qilin posting the most victims.

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CVE-2025-34291 — Langflow Langflow | CVSS 9.4 CRITICAL

CRITICAL

CVSS 9.4 CRITICAL  ·  EPSS 9%  ·  Langflow Langflow

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Threat Intelligence Report — May 20, 2026 | 7 New KEVs · 135 Victims

Report Date: 2026-05-20

New KEVs: 7Critical CVEs: 5Ransomware Victims: 135

7 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. 5 additional critical-severity CVEs have been published to the NVD but not yet confirmed as exploited — Microsoft products show the strongest concentration of risk signals this week. Threat intelligence sources this period reference Turla (Russia). Ransomware activity is moderate with 135 new victims posted to leak sites over the last 7 days, with Qilin posting the most victims.

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CVE-2026-41091 — Microsoft Defender | CVSS 7.8 HIGH

HIGH

CVSS 7.8 HIGH  ·  EPSS N/A  ·  Microsoft Defender

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CVE-2010-0806 — Microsoft Internet Explorer | CVSS 9.3 HIGH

HIGH

CVSS 9.3 HIGH  ·  EPSS 89%  ·  Microsoft Internet Explorer

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CVE-2009-3459 — Adobe Acrobat and Reader | CVSS 9.3 HIGH

HIGH

CVSS 9.3 HIGH  ·  EPSS 87%  ·  Adobe Acrobat and Reader

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