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Cisco IOS XR Software Security Hardening Release: September 2026

🗓️ 02 Sep 2026 16:00:00Reported by CiscoType 
cisco
 cisco🔗 tools.cisco.com👁 3 Views

Cisco IOS XR Software hardening release fixes multiple internally found vulnerabilities.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
circl
Circl		CVE-2026-20274
2 Sep 202616:36
–circl
circl
Circl		CVE-2026-20275
2 Sep 202616:36
–circl
circl
Circl		CVE-2026-20276
2 Sep 202616:36
–circl
circl
Circl		CVE-2026-20279
2 Sep 202618:08
–circl
cisco
Cisco		Cisco Advance Notification for Publication of September 2, 2026, Security Advisories
26 Aug 202616:00
–cisco
cve
CVE		CVE-2026-20274
2 Sep 202616:13
–cve
cve
CVE		CVE-2026-20275
2 Sep 202616:13
–cve
cve
CVE		CVE-2026-20276
2 Sep 202616:13
–cve
cve
CVE		CVE-2026-20277
2 Sep 202616:13
–cve
cve
CVE		CVE-2026-20278
2 Sep 202616:14
–cve
Rows per page
Vulners
Node
OR
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ciscoios_xrMatch3.2.50
ciscoios_xrMatch3.2.6
ciscoios_xrMatch3.3.0
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ciscoios_xrMatch3.3.1
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ciscoios_xrMatch6.6.90
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ciscoios_xrMatch7.0.0
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ciscoios_xrMatch7.1.25
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ciscoios_xrMatch6.7.0
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ciscoios_xrMatch7.3.27
ciscoios_xrMatch7.3.4
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ciscoios_xrMatch6.8.1
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ciscoios_xrMatch7.11.21
ciscoios_xrMatch24.1.1
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ciscoios_xrMatch24.2.20
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ciscoios_xrMatch24.3.1
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ciscoios_xrMatch24.4.10
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ciscoios_xrMatch25.1.1
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02 Sep 2026 16:00Current
Cisco IOS XRSecurity HardeningInternally DiscoveredSoftware UpdateMultiple Vulnerabilities
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