ZeroHour

Source: Canadian Centre for Cyber Security

3 stories in the last 7d

Cisco security advisory (AV26-197) – Update 3

CISA added Cisco CVE-2026-20079 to its KEV catalog; the Canadian Cyber Centre urges updates across Secure Firewall ASA, FTD, FMC, and SCC products.

The Canadian Centre for Cyber Security updated advisory AV26-197 covering March 2026 Cisco advisories for Security Cloud Control, Secure Firewall Management Center, ASA, and FTD. Cisco confirmed CVE-2026-20131 was actively exploited on March 18, 2026, and CISA added it to KEV on March 19. In Update 3, dated September 9, 2026, CISA added CVE-2026-20079 to the KEV catalog. The underlying flaws include FMC authentication bypass and remote code execution, ASA TCP-flood denial of service, and ASA/FTD IPsec denial of service.

Canadian Centre for Cyber Securityupdated · 1d agofirst · 6d agoExploit / PoC in the wild 13 sourcesCVE-2026-20131CVE-2026-20079

Citrix security advisory (AV26-833) - Update 1

CISA added actively exploited NetScaler flaw CVE-2026-19490 to its KEV catalog; the Canadian Cyber Centre urges Citrix ADC and Gateway admins to patch.

The Canadian Centre for Cyber Security updated advisory AV26-833 covering Citrix NetScaler ADC and Gateway vulnerabilities in versions 13.1 (prior to 13.1-63.21) and 14.1 (prior to 14.1-73.32), plus FIPS builds. On September 9, 2026, CISA added CVE-2026-19490 to the Known Exploited Vulnerabilities catalog, indicating confirmed exploitation. The bulletin also references CVE-2026-19489 from the Citrix NetScaler ADC and Gateway Security Bulletin. Administrators should apply the fixed builds, including 13.1-37.277 and 14.1-73.32 for FIPS variants.

Canadian Centre for Cyber Securityupdated · 5d agofirst · 6d agoExploit / PoC in the wild 5 sourcesCVE-2026-19489CVE-2026-19490

Fortinet security advisory (AV26-023) - Update 1

CISA added Fortinet CVE-2025-25249, a heap-based buffer overflow in the cw_acd daemon, to its KEV catalog; Canadian Cyber Centre urges patching.

The Canadian Centre for Cyber Security updated advisory AV26-023, which relays January 2026 Fortinet advisories covering FortiFone, FortiOS, FortiSASE, FortiSIEM, and FortiSwitchManager. On September 9, 2026, CISA added CVE-2025-25249, a heap-based buffer overflow in the cw_acd daemon, to its Known Exploited Vulnerabilities catalog. Related Fortinet flaws include unauthenticated local configuration access (CVE-2025-47855) and unauthenticated remote command injection (CVE-2025-64155). Administrators should review the advisories and apply available updates.

Canadian Centre for Cyber Securityupdated · 5d agofirst · 6d agoExploit / PoC in the wild 4 sourcesCVE-2025-25249CVE-2025-47855CVE-2025-64155