CVE-2021-1389

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Summary

CVECVE-2021-1389
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-04 17:15:00 UTC
Updated2023-11-07 03:28:00 UTC
DescriptionA vulnerability in the IPv6 traffic processing of Cisco IOS XR Software and Cisco NX-OS Software for certain Cisco devices could allow an unauthenticated, remote attacker to bypass an IPv6 access control list (ACL) that is configured for an interface of an affected device. The vulnerability is due to improper processing of IPv6 traffic that is sent through an affected device. An attacker could exploit this vulnerability by sending crafted IPv6 packets that traverse the affected device. A successful exploit could allow the attacker to access resources that would typically be protected by the interface ACL.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Ios Xr All All All All
Operating System Cisco Ios Xr 7.1.0 All All All
Operating System Cisco Ios Xr 7.2.0 All All All
Operating System Cisco Ios Xr All All All All
Operating System Cisco Ios Xr 7.1.0 All All All
Operating System Cisco Ios Xr 7.2.0 All All All
Hardware Cisco Ncs 540 - All All All
Hardware Cisco Ncs 540 - All All All
Hardware Cisco Ncs 540 - All All All
Hardware Cisco Ncs 5501 - All All All
Hardware Cisco Ncs 5501 - All All All
Hardware Cisco Ncs 5501 - All All All
Hardware Cisco Ncs 5501-se - All All All
Hardware Cisco Ncs 5501-se - All All All
Hardware Cisco Ncs 5501-se - All All All
Hardware Cisco Ncs 5502 - All All All
Hardware Cisco Ncs 5502 - All All All
Hardware Cisco Ncs 5502 - All All All
Hardware Cisco Ncs 5502-se - All All All
Hardware Cisco Ncs 5502-se - All All All
Hardware Cisco Ncs 5502-se - All All All
Hardware Cisco Ncs 5508 - All All All
Hardware Cisco Ncs 5508 - All All All
Hardware Cisco Ncs 5508 - All All All
Hardware Cisco Ncs 5516 - All All All
Hardware Cisco Ncs 5516 - All All All
Hardware Cisco Ncs 5516 - All All All
Hardware Cisco Ncs 560 - All All All
Hardware Cisco Ncs 560 - All All All
Hardware Cisco Ncs 560 - All All All
Hardware Cisco Nexus 3600 - All All All
Hardware Cisco Nexus 3600 - All All All
Hardware Cisco Nexus 3600 - All All All
Hardware Cisco Nexus 9500 R - All All All
Hardware Cisco Nexus 9500 R - All All All
Hardware Cisco Nexus 9500 R - All All All
Operating System Cisco Nx-os - All All All
Operating System Cisco Nx-os - All All All

References

ReferenceSourceLinkTags
Cisco IOS XR and Cisco NX-OS Software IPv6 Access Control List Bypass Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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