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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👁 17 Views

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

Related
Detection
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC		The vulnerability of Cisco IOS XR operating systems, related to improper handling of exceptional states, allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.
14 Sep 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of Cisco IOS XR operating systems, related to deficiencies in access control, allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.
14 Sep 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC		Vulnerabilities of Cisco IOS XR operating systems, related to insufficient validation of message correctness or data structure, allow attackers to compromise the confidentiality, integrity, and accessibility of protected information.
14 Sep 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of Cisco IOS XR operating systems, related to the compromised data protection mechanism, allows attackers to compromise the integrity and accessibility of protected information.
14 Sep 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of Cisco IOS XR operating systems, related to the implementation of incorrect control flow, allows attackers to trigger service interruptions.
14 Sep 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of Cisco IOS XR operating systems, related to incorrect calculations, allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.
14 Sep 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of Cisco IOS XR operating systems arises from inadequate control over resources throughout their entire lifecycle. This allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.
14 Sep 202600:00
–bdu_fstec
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
Rows per page
Vulners
Node
OR
ciscoios_xrMatch3.0.0
ciscoios_xrMatch3.0.1
ciscoios_xrMatch2.0.0
ciscoios_xrMatch3.2.0
ciscoios_xrMatch3.2.3
ciscoios_xrMatch3.2.2
ciscoios_xrMatch3.2.1
ciscoios_xrMatch3.2.4
ciscoios_xrMatch3.2.50
ciscoios_xrMatch3.2.6
ciscoios_xrMatch3.3.0
ciscoios_xrMatch3.3.4
ciscoios_xrMatch3.3.3
ciscoios_xrMatch3.3.2
ciscoios_xrMatch3.3.1
ciscoios_xrMatch3.4.0
ciscoios_xrMatch3.4.1
ciscoios_xrMatch3.4.2
ciscoios_xrMatch3.4.3
ciscoios_xrMatch3.5.0
ciscoios_xrMatch3.5.2
ciscoios_xrMatch3.5.3
ciscoios_xrMatch3.5.4
ciscoios_xrMatch3.6.1
ciscoios_xrMatch3.6.2
ciscoios_xrMatch3.6.3
ciscoios_xrMatch3.6.0
ciscoios_xrMatch3.7.1
ciscoios_xrMatch3.7.2
ciscoios_xrMatch3.7.3
ciscoios_xrMatch3.7.0
ciscoios_xrMatch3.8.0
ciscoios_xrMatch3.8.1
ciscoios_xrMatch3.8.2
ciscoios_xrMatch3.8.3
ciscoios_xrMatch3.8.4
ciscoios_xrMatch3.9.0
ciscoios_xrMatch3.9.1
ciscoios_xrMatch3.9.2
ciscoios_xrMatch3.9.3
ciscoios_xrMatch4.0.1
ciscoios_xrMatch4.0.2
ciscoios_xrMatch4.0.0
ciscoios_xrMatch4.0.3
ciscoios_xrMatch4.0.4
ciscoios_xrMatch4.0.11
ciscoios_xrMatch4.1.0
ciscoios_xrMatch4.1.1
ciscoios_xrMatch4.1.2
ciscoios_xrMatch4.2.0
ciscoios_xrMatch4.2.1
ciscoios_xrMatch4.2.2
ciscoios_xrMatch4.2.3
ciscoios_xrMatch4.2.4
ciscoios_xrMatch4.3.0
ciscoios_xrMatch4.3.1
ciscoios_xrMatch4.3.2
ciscoios_xrMatch4.3.3
ciscoios_xrMatch4.3.4
ciscoios_xrMatch5.1.0
ciscoios_xrMatch5.1.1
ciscoios_xrMatch5.1.2
ciscoios_xrMatch5.1.3
ciscoios_xrMatch5.1.1.k9sec
ciscoios_xrMatch5.1.4
ciscoios_xrMatch5.1.11
ciscoios_xrMatch5.1.12
ciscoios_xrMatch5.2.0
ciscoios_xrMatch5.2.1
ciscoios_xrMatch5.2.2
ciscoios_xrMatch5.2.4
ciscoios_xrMatch5.2.3
ciscoios_xrMatch5.2.5
ciscoios_xrMatch5.2.21
ciscoios_xrMatch5.2.47
ciscoios_xrMatch5.2.6
ciscoios_xrMatch5.3.0
ciscoios_xrMatch5.3.1
ciscoios_xrMatch5.3.2
ciscoios_xrMatch5.3.3
ciscoios_xrMatch5.3.4
ciscoios_xrMatch5.3.31
ciscoios_xrMatch5.0.0
ciscoios_xrMatch5.0.1
ciscoios_xrMatch6.0.0
ciscoios_xrMatch6.0.1
ciscoios_xrMatch6.0.2
ciscoios_xrMatch6.0.2.01
ciscoios_xrMatch6.1.0
ciscoios_xrMatch6.1.1
ciscoios_xrMatch6.1.2
ciscoios_xrMatch6.1.3
ciscoios_xrMatch6.1.4
ciscoios_xrMatch6.1.12
ciscoios_xrMatch6.1.22
ciscoios_xrMatch6.1.32
ciscoios_xrMatch6.1.11
ciscoios_xrMatch6.1.21
ciscoios_xrMatch6.1.31
ciscoios_xrMatch6.1.33
ciscoios_xrMatch6.1.36
ciscoios_xrMatch6.1.42
ciscoios_xrMatch6.1.45
ciscoios_xrMatch6.2.0
ciscoios_xrMatch6.2.1
ciscoios_xrMatch6.2.2
ciscoios_xrMatch6.2.3
ciscoios_xrMatch6.2.25
ciscoios_xrMatch6.2.11
ciscoios_xrMatch6.2.8
ciscoios_xrMatch6.2.9
ciscoios_xrMatch6.3.0
ciscoios_xrMatch6.3.1
ciscoios_xrMatch6.3.2
ciscoios_xrMatch6.3.3
ciscoios_xrMatch6.3.15
ciscoios_xrMatch6.4.0
ciscoios_xrMatch6.4.1
ciscoios_xrMatch6.4.2
ciscoios_xrMatch6.4.9999
ciscoios_xrMatch6.4.3
ciscoios_xrMatch6.5.0
ciscoios_xrMatch6.5.1
ciscoios_xrMatch6.5.2
ciscoios_xrMatch6.5.3
ciscoios_xrMatch6.5.15
ciscoios_xrMatch6.5.25
ciscoios_xrMatch6.5.26
ciscoios_xrMatch6.5.28
ciscoios_xrMatch6.5.29
ciscoios_xrMatch6.5.36
ciscoios_xrMatch6.5.90
ciscoios_xrMatch6.5.92
ciscoios_xrMatch6.5.93
ciscoios_xrMatch6.5.31
ciscoios_xrMatch6.5.32
ciscoios_xrMatch6.5.33
ciscoios_xrMatch6.5.35
ciscoios_xrMatch6.5.351
ciscoios_xrMatch6.5.352
ciscoios_xrMatch6.5.353
ciscoios_xrMatch6.6.0
ciscoios_xrMatch6.6.1
ciscoios_xrMatch6.6.2
ciscoios_xrMatch6.6.3
ciscoios_xrMatch6.6.25
ciscoios_xrMatch6.6.11
ciscoios_xrMatch6.6.12
ciscoios_xrMatch6.6.406
ciscoios_xrMatch6.6.560
ciscoios_xrMatch6.6.90
ciscoios_xrMatch6.6.4
ciscoios_xrMatch7.0.0
ciscoios_xrMatch7.0.1
ciscoios_xrMatch7.0.2
ciscoios_xrMatch7.0.11
ciscoios_xrMatch7.0.12
ciscoios_xrMatch7.0.208
ciscoios_xrMatch7.0.213
ciscoios_xrMatch7.0.216
ciscoios_xrMatch7.0.219
ciscoios_xrMatch7.0.220
ciscoios_xrMatch7.0.90
ciscoios_xrMatch7.0.14
ciscoios_xrMatch7.1.0
ciscoios_xrMatch7.1.1
ciscoios_xrMatch7.1.15
ciscoios_xrMatch7.1.119
ciscoios_xrMatch7.1.122
ciscoios_xrMatch7.1.2
ciscoios_xrMatch7.1.25
ciscoios_xrMatch7.1.3
ciscoios_xrMatch6.7.0
ciscoios_xrMatch6.7.1
ciscoios_xrMatch6.7.2
ciscoios_xrMatch6.7.3
ciscoios_xrMatch6.7.4
ciscoios_xrMatch6.7.35
ciscoios_xrMatch7.2.0
ciscoios_xrMatch7.2.1
ciscoios_xrMatch7.2.141
ciscoios_xrMatch7.2.12
ciscoios_xrMatch7.2.2
ciscoios_xrMatch7.3.1
ciscoios_xrMatch7.3.15
ciscoios_xrMatch7.3.16
ciscoios_xrMatch7.3.2
ciscoios_xrMatch7.3.3
ciscoios_xrMatch7.3.27
ciscoios_xrMatch7.3.4
ciscoios_xrMatch7.3.5
ciscoios_xrMatch7.3.6
ciscoios_xrMatch7.4.1
ciscoios_xrMatch7.4.15
ciscoios_xrMatch7.4.16
ciscoios_xrMatch7.4.2
ciscoios_xrMatch6.8.1
ciscoios_xrMatch6.8.2
ciscoios_xrMatch7.5.1
ciscoios_xrMatch7.5.3
ciscoios_xrMatch7.5.12
ciscoios_xrMatch7.5.2
ciscoios_xrMatch7.5.4
ciscoios_xrMatch7.5.5
ciscoios_xrMatch7.6.15
ciscoios_xrMatch7.6.1
ciscoios_xrMatch7.6.2
ciscoios_xrMatch7.6.3
ciscoios_xrMatch7.7.1
ciscoios_xrMatch7.7.2
ciscoios_xrMatch7.7.21
ciscoios_xrMatch6.9.1
ciscoios_xrMatch6.9.2
ciscoios_xrMatch7.8.1
ciscoios_xrMatch7.8.2
ciscoios_xrMatch7.8.22
ciscoios_xrMatch7.8.23
ciscoios_xrMatch7.9.1
ciscoios_xrMatch7.9.2
ciscoios_xrMatch7.9.21
ciscoios_xrMatch7.10.1
ciscoios_xrMatch7.10.2
ciscoios_xrMatch7.11.1
ciscoios_xrMatch7.11.2
ciscoios_xrMatch7.11.21
ciscoios_xrMatch24.1.1
ciscoios_xrMatch24.1.2
ciscoios_xrMatch24.2.1
ciscoios_xrMatch24.2.11
ciscoios_xrMatch24.2.2
ciscoios_xrMatch24.2.20
ciscoios_xrMatch24.2.21
ciscoios_xrMatch24.3.1
ciscoios_xrMatch24.3.2
ciscoios_xrMatch24.3.20
ciscoios_xrMatch24.3.30
ciscoios_xrMatch24.4.10
ciscoios_xrMatch24.4.1
ciscoios_xrMatch24.4.2
ciscoios_xrMatch24.4.15
ciscoios_xrMatch24.4.30
ciscoios_xrMatch25.1.1
ciscoios_xrMatch25.1.2
ciscoios_xrMatch25.1.30
ciscoios_xrMatch25.2.1
ciscoios_xrMatch25.2.2
ciscoios_xrMatch25.2.30
ciscoios_xrMatch25.3.1
ciscoios_xrMatch25.3.15
ciscoios_xrMatch25.4.1
ciscoios_xrMatch25.4.2
ciscoios_xrMatch25.4.30
ciscoios_xrMatch25.4.201
ciscoios_xrMatch26.1.1
ciscoios_xrMatch26.1.2
ciscoios_xrMatch26.2.1
ciscoios_xrMatch26.2.100
ciscoios_xrMatch26.2.101

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17 Sep 2026 21:13Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.0073
Cisco IOS XRSecurity HardeningInternally DiscoveredSoftware UpdateMultiple Vulnerabilities
17