8.6

CVE-2026-20273

Medienbericht

Cisco IOS XE Software Security Hardening Release

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-20273 are related to improper input validation issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Ios Xe Version16.6.2
Cisco ≫ Ios Xe Version16.6.3
Cisco ≫ Ios Xe Version16.6.4
Cisco ≫ Ios Xe Version16.6.4a
Cisco ≫ Ios Xe Version16.6.4s
Cisco ≫ Ios Xe Version16.6.5
Cisco ≫ Ios Xe Version16.6.5a
Cisco ≫ Ios Xe Version16.6.5b
Cisco ≫ Ios Xe Version16.6.6
Cisco ≫ Ios Xe Version16.6.7
Cisco ≫ Ios Xe Version16.6.7a
Cisco ≫ Ios Xe Version16.6.8
Cisco ≫ Ios Xe Version16.6.9
Cisco ≫ Ios Xe Version16.6.10
Cisco ≫ Ios Xe Version16.7.1
Cisco ≫ Ios Xe Version16.7.1a
Cisco ≫ Ios Xe Version16.7.1b
Cisco ≫ Ios Xe Version16.7.2
Cisco ≫ Ios Xe Version16.7.3
Cisco ≫ Ios Xe Version16.7.4
Cisco ≫ Ios Xe Version16.8.1
Cisco ≫ Ios Xe Version16.8.1a
Cisco ≫ Ios Xe Version16.8.1b
Cisco ≫ Ios Xe Version16.8.1c
Cisco ≫ Ios Xe Version16.8.1d
Cisco ≫ Ios Xe Version16.8.1e
Cisco ≫ Ios Xe Version16.8.1s
Cisco ≫ Ios Xe Version16.8.2
Cisco ≫ Ios Xe Version16.8.3
Cisco ≫ Ios Xe Version16.9.1
Cisco ≫ Ios Xe Version16.9.1a
Cisco ≫ Ios Xe Version16.9.1b
Cisco ≫ Ios Xe Version16.9.1c
Cisco ≫ Ios Xe Version16.9.1d
Cisco ≫ Ios Xe Version16.9.1s
Cisco ≫ Ios Xe Version16.9.2
Cisco ≫ Ios Xe Version16.9.2a
Cisco ≫ Ios Xe Version16.9.2s
Cisco ≫ Ios Xe Version16.9.3
Cisco ≫ Ios Xe Version16.9.3a
Cisco ≫ Ios Xe Version16.9.3h
Cisco ≫ Ios Xe Version16.9.3s
Cisco ≫ Ios Xe Version16.9.4
Cisco ≫ Ios Xe Version16.9.4c
Cisco ≫ Ios Xe Version16.9.5
Cisco ≫ Ios Xe Version16.9.5f
Cisco ≫ Ios Xe Version16.9.6
Cisco ≫ Ios Xe Version16.9.7
Cisco ≫ Ios Xe Version16.9.8
Cisco ≫ Ios Xe Version16.9.8a
Cisco ≫ Ios Xe Version16.9.8b
Cisco ≫ Ios Xe Version16.10.1
Cisco ≫ Ios Xe Version16.10.1a
Cisco ≫ Ios Xe Version16.10.1b
Cisco ≫ Ios Xe Version16.10.1c
Cisco ≫ Ios Xe Version16.10.1d
Cisco ≫ Ios Xe Version16.10.1e
Cisco ≫ Ios Xe Version16.10.1f
Cisco ≫ Ios Xe Version16.10.1g
Cisco ≫ Ios Xe Version16.10.1s
Cisco ≫ Ios Xe Version16.10.2
Cisco ≫ Ios Xe Version16.10.3
Cisco ≫ Ios Xe Version16.11.1
Cisco ≫ Ios Xe Version16.11.1a
Cisco ≫ Ios Xe Version16.11.1b
Cisco ≫ Ios Xe Version16.11.1c
Cisco ≫ Ios Xe Version16.11.1s
Cisco ≫ Ios Xe Version16.11.2
Cisco ≫ Ios Xe Version16.12.1
Cisco ≫ Ios Xe Version16.12.1a
Cisco ≫ Ios Xe Version16.12.1c
Cisco ≫ Ios Xe Version16.12.1s
Cisco ≫ Ios Xe Version16.12.1t
Cisco ≫ Ios Xe Version16.12.1w
Cisco ≫ Ios Xe Version16.12.1x
Cisco ≫ Ios Xe Version16.12.1y
Cisco ≫ Ios Xe Version16.12.1z
Cisco ≫ Ios Xe Version16.12.1z1
Cisco ≫ Ios Xe Version16.12.1z2
Cisco ≫ Ios Xe Version16.12.2
Cisco ≫ Ios Xe Version16.12.2a
Cisco ≫ Ios Xe Version16.12.2s
Cisco ≫ Ios Xe Version16.12.2t
Cisco ≫ Ios Xe Version16.12.3
Cisco ≫ Ios Xe Version16.12.3a
Cisco ≫ Ios Xe Version16.12.3s
Cisco ≫ Ios Xe Version16.12.4
Cisco ≫ Ios Xe Version16.12.4a
Cisco ≫ Ios Xe Version16.12.5
Cisco ≫ Ios Xe Version16.12.5a
Cisco ≫ Ios Xe Version16.12.5b
Cisco ≫ Ios Xe Version16.12.6
Cisco ≫ Ios Xe Version16.12.6a
Cisco ≫ Ios Xe Version16.12.7
Cisco ≫ Ios Xe Version16.12.8
Cisco ≫ Ios Xe Version16.12.9
Cisco ≫ Ios Xe Version16.12.10
Cisco ≫ Ios Xe Version16.12.10a
Cisco ≫ Ios Xe Version16.12.11
Cisco ≫ Ios Xe Version16.12.12
Cisco ≫ Ios Xe Version16.12.13
Cisco ≫ Ios Xe Version16.12.14
Cisco ≫ Ios Xe Version16.12.15
Cisco ≫ Ios Xe Version16.12.16
Cisco ≫ Ios Xe Version17.1.1
Cisco ≫ Ios Xe Version17.1.1a
Cisco ≫ Ios Xe Version17.1.1s
Cisco ≫ Ios Xe Version17.1.1t
Cisco ≫ Ios Xe Version17.1.2
Cisco ≫ Ios Xe Version17.1.3
Cisco ≫ Ios Xe Version17.2.1
Cisco ≫ Ios Xe Version17.2.1a
Cisco ≫ Ios Xe Version17.2.1r
Cisco ≫ Ios Xe Version17.2.1v
Cisco ≫ Ios Xe Version17.2.2
Cisco ≫ Ios Xe Version17.2.3
Cisco ≫ Ios Xe Version17.3.1
Cisco ≫ Ios Xe Version17.3.1a
Cisco ≫ Ios Xe Version17.3.1w
Cisco ≫ Ios Xe Version17.3.1x
Cisco ≫ Ios Xe Version17.3.1z
Cisco ≫ Ios Xe Version17.3.2
Cisco ≫ Ios Xe Version17.3.2a
Cisco ≫ Ios Xe Version17.3.3
Cisco ≫ Ios Xe Version17.3.3a
Cisco ≫ Ios Xe Version17.3.4
Cisco ≫ Ios Xe Version17.3.4a
Cisco ≫ Ios Xe Version17.3.4b
Cisco ≫ Ios Xe Version17.3.4c
Cisco ≫ Ios Xe Version17.3.5
Cisco ≫ Ios Xe Version17.3.5a
Cisco ≫ Ios Xe Version17.3.5b
Cisco ≫ Ios Xe Version17.3.6
Cisco ≫ Ios Xe Version17.3.7
Cisco ≫ Ios Xe Version17.3.8
Cisco ≫ Ios Xe Version17.3.8a
Cisco ≫ Ios Xe Version17.4.1
Cisco ≫ Ios Xe Version17.4.1a
Cisco ≫ Ios Xe Version17.4.1b
Cisco ≫ Ios Xe Version17.4.1c
Cisco ≫ Ios Xe Version17.4.2
Cisco ≫ Ios Xe Version17.4.2a
Cisco ≫ Ios Xe Version17.5.1
Cisco ≫ Ios Xe Version17.5.1a
Cisco ≫ Ios Xe Version17.6.1
Cisco ≫ Ios Xe Version17.6.1a
Cisco ≫ Ios Xe Version17.6.1x
Cisco ≫ Ios Xe Version17.6.1z
Cisco ≫ Ios Xe Version17.6.1z1
Cisco ≫ Ios Xe Version17.6.2
Cisco ≫ Ios Xe Version17.6.3
Cisco ≫ Ios Xe Version17.6.3a
Cisco ≫ Ios Xe Version17.6.4
Cisco ≫ Ios Xe Version17.6.5
Cisco ≫ Ios Xe Version17.6.5a
Cisco ≫ Ios Xe Version17.6.6
Cisco ≫ Ios Xe Version17.6.6a
Cisco ≫ Ios Xe Version17.6.7
Cisco ≫ Ios Xe Version17.6.8
Cisco ≫ Ios Xe Version17.6.8a
Cisco ≫ Ios Xe Version17.7.1
Cisco ≫ Ios Xe Version17.7.1a
Cisco ≫ Ios Xe Version17.7.1b
Cisco ≫ Ios Xe Version17.7.2
Cisco ≫ Ios Xe Version17.8.1
Cisco ≫ Ios Xe Version17.8.1a
Cisco ≫ Ios Xe Version17.9.1
Cisco ≫ Ios Xe Version17.9.1a
Cisco ≫ Ios Xe Version17.9.1w
Cisco ≫ Ios Xe Version17.9.1x
Cisco ≫ Ios Xe Version17.9.1x1
Cisco ≫ Ios Xe Version17.9.1y
Cisco ≫ Ios Xe Version17.9.1y1
Cisco ≫ Ios Xe Version17.9.2
Cisco ≫ Ios Xe Version17.9.2a
Cisco ≫ Ios Xe Version17.9.3
Cisco ≫ Ios Xe Version17.9.3a
Cisco ≫ Ios Xe Version17.9.4
Cisco ≫ Ios Xe Version17.9.4a
Cisco ≫ Ios Xe Version17.9.5
Cisco ≫ Ios Xe Version17.9.5a
Cisco ≫ Ios Xe Version17.9.5b
Cisco ≫ Ios Xe Version17.9.5c
Cisco ≫ Ios Xe Version17.9.5d
Cisco ≫ Ios Xe Version17.9.5e
Cisco ≫ Ios Xe Version17.9.5f
Cisco ≫ Ios Xe Version17.9.6
Cisco ≫ Ios Xe Version17.9.6a
Cisco ≫ Ios Xe Version17.9.7
Cisco ≫ Ios Xe Version17.9.7a
Cisco ≫ Ios Xe Version17.9.7b
Cisco ≫ Ios Xe Version17.9.8
Cisco ≫ Ios Xe Version17.9.9
Cisco ≫ Ios Xe Version17.10.1
Cisco ≫ Ios Xe Version17.10.1a
Cisco ≫ Ios Xe Version17.10.1b
Cisco ≫ Ios Xe Version17.11.1
Cisco ≫ Ios Xe Version17.11.1a
Cisco ≫ Ios Xe Version17.12.1
Cisco ≫ Ios Xe Version17.12.1a
Cisco ≫ Ios Xe Version17.12.1w
Cisco ≫ Ios Xe Version17.12.1x
Cisco ≫ Ios Xe Version17.12.1y
Cisco ≫ Ios Xe Version17.12.1z
Cisco ≫ Ios Xe Version17.12.1z1
Cisco ≫ Ios Xe Version17.12.1z2
Cisco ≫ Ios Xe Version17.12.1z3
Cisco ≫ Ios Xe Version17.12.1z4
Cisco ≫ Ios Xe Version17.12.1z5
Cisco ≫ Ios Xe Version17.12.1z6
Cisco ≫ Ios Xe Version17.12.2
Cisco ≫ Ios Xe Version17.12.2a
Cisco ≫ Ios Xe Version17.12.3
Cisco ≫ Ios Xe Version17.12.3a
Cisco ≫ Ios Xe Version17.12.4
Cisco ≫ Ios Xe Version17.12.4a
Cisco ≫ Ios Xe Version17.12.4b
Cisco ≫ Ios Xe Version17.12.5
Cisco ≫ Ios Xe Version17.12.5a
Cisco ≫ Ios Xe Version17.12.5b
Cisco ≫ Ios Xe Version17.12.5c
Cisco ≫ Ios Xe Version17.12.5d
Cisco ≫ Ios Xe Version17.12.6
Cisco ≫ Ios Xe Version17.12.6a
Cisco ≫ Ios Xe Version17.12.6b
Cisco ≫ Ios Xe Version17.12.7
Cisco ≫ Ios Xe Version17.12.7a
Cisco ≫ Ios Xe Version17.12.7b
Cisco ≫ Ios Xe Version17.13.1
Cisco ≫ Ios Xe Version17.13.1a
Cisco ≫ Ios Xe Version17.14.1
Cisco ≫ Ios Xe Version17.14.1a
Cisco ≫ Ios Xe Version17.15.1
Cisco ≫ Ios Xe Version17.15.1a
Cisco ≫ Ios Xe Version17.15.1b
Cisco ≫ Ios Xe Version17.15.1w
Cisco ≫ Ios Xe Version17.15.1x
Cisco ≫ Ios Xe Version17.15.1y
Cisco ≫ Ios Xe Version17.15.2
Cisco ≫ Ios Xe Version17.15.2a
Cisco ≫ Ios Xe Version17.15.2b
Cisco ≫ Ios Xe Version17.15.2c
Cisco ≫ Ios Xe Version17.15.3
Cisco ≫ Ios Xe Version17.15.3a
Cisco ≫ Ios Xe Version17.15.3b
Cisco ≫ Ios Xe Version17.15.4
Cisco ≫ Ios Xe Version17.15.4a
Cisco ≫ Ios Xe Version17.15.4b
Cisco ≫ Ios Xe Version17.15.4c
Cisco ≫ Ios Xe Version17.15.4d
Cisco ≫ Ios Xe Version17.15.4s1
Cisco ≫ Ios Xe Version17.15.5
Cisco ≫ Ios Xe Version17.15.5a
Cisco ≫ Ios Xe Version17.15.7
Cisco ≫ Ios Xe Version17.16.1
Cisco ≫ Ios Xe Version17.16.1a
Cisco ≫ Ios Xe Version17.17.1
Cisco ≫ Ios Xe Version17.18.1a
Cisco ≫ Ios Xe Version17.18.1w
Cisco ≫ Ios Xe Version17.18.1x
Cisco ≫ Ios Xe Version17.18.1y
Cisco ≫ Ios Xe Version17.18.1z
Cisco ≫ Ios Xe Version17.18.2
Cisco ≫ Ios Xe Version17.18.3
Cisco ≫ Ios Xe Version17.18.3a
Cisco ≫ Ios Xe Version26.1.1
Cisco ≫ Ios Xe Version26.1.1a
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.27% 0.189
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Cisco PSIRT 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
06.08.2026 20:31
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxe-V8NMuMZJ
Vendor Advisory
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification
Not Applicable