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Plain-language security advisories for IT teams in Taiwan: what happened, how it developed, and how to fix it. Every sentence is sourced.

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© 2026 資安通報

Keyword, CVE, vendor, product…

Exploitation

Exploited only1

Type

Incident2

Severity

High1
Critical1

Category

Espionage / nation-state1
Vulnerability1

Status

Active1
Monitoring1

Region

Central Asia1
Eastern Europe1
North America1
Southeast Europe1

Country

Kazakhstan1
Romania1
Russia1
United States1

Industry

Government2
Cross-industry1

Domain

Web applications1
Endpoint1
Email1

Vendor

Microsoft1

Organization

Turla1
Microsoft1
ESET1
CISA1

Technology

Windows1

Attack vector

Unknown1
Vulnerability exploitation1

Impact

Espionage1
Data exfiltration1

Actor type

Nation-state / APT1
Unknown1

Motivation

Language / package ecosystem

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2 results

◆HighEspionage / nation-stateActiveNov 10, 2026

ESET said on November 10 that it found a previously undocumented modular .

▲CriticalVulnerabilityMonitoringBackfillExploitedEPSS 100%CVE-2025-53770Jul 20, 2025· updated Nov 11

On July 20, 2025, CISA added CVE-2025-53770 ('ToolShell') in on-premises Microsoft SharePoint to its Known Exploited Vulnerabilities (KEV) catalog .

✓.NET / C# (NuGet)2

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ESET: Turla hides new Cereal toolset on government Exchange servers to collect NATO and EU correspondence

CISA Adds SharePoint 'ToolShell' Vulnerability CVE-2025-53770 to Known Exploited Vulnerabilities Catalog