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A government-linked group exploits Cisco firewall flaws since May 2025, causing outages or remote access; patch immediately.
Cisco warns of a new attack variant targeting its Secure ASA and FTD firewalls since at least May 2025, exploiting vulnerabilities CVE-2025-20333 and CVE-2025-20362 to cause denial-of-service or remote code execution.
The attacks, linked to a government-backed group tied to the ArcaneDoor campaign, use advanced evasion tactics and persistent malware.
Two additional critical flaws in UCCX software were also disclosed, though not yet actively exploited.
Cisco, working with CISA and the UK’s NCSC, urges immediate patching to prevent compromise.
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Un grupo vinculado al gobierno explota las fallas del firewall de Cisco desde mayo de 2025, causando interrupciones o acceso remoto; parchear inmediatamente.