The420.In CISA Alerts on Active Exploitation of Notepad++ RCE Flaw CVE-2025-15556
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CISA has identified a critical remote code execution vulnerability (CVE-2025-15556) in Notepad++, which is actively being exploited. Federal agencies are required to apply patches by March 5, 2026, following its addition to the Known Exploited Vulnerabilities catalog on February 12, 2026.
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Updated 214d ago How this analysis works
Timeline
2026-02-03
CVE-2025-15556 published
2026-02-09
First public PoC released
2026-02-12
CVE-2025-15556 added to CISA KEV catalog
2026-02-14
CISA issues warning on active exploitation
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