Improper Handling of Exceptional Conditions in Cisco IOS XR Software
CVE-2026-20280

8.8HIGH

Key Information:

Vendor

Cisco
Status
Cisco iOS Xr Software
Vendor
CVE Published:
2 September 2026

Badges

👾 Exploit Exists

What is CVE-2026-20280?

The vulnerability pertains to improper checking or handling of exceptional conditions in Cisco IOS XR Software, which may lead to unforeseen behavior or security issues. This issue is identified under Common Weakness Enumeration (CWE) CWE-703. In response to this risk, Cisco has implemented software hardening releases aimed at bolstering the security framework of the affected software versions. Users are advised to apply the latest updates to mitigate potential threats.

Affected Version(s)

Cisco IOS XR Software 6.5.29

Cisco IOS XR Software 7.0.1

Cisco IOS XR Software 6.5.26

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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