7.4

CVE-2024-20312

A vulnerability in the Intermediate System-to-Intermediate System (IS-IS) protocol of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.

 This vulnerability is due to insufficient input validation when parsing an ingress IS-IS packet. An attacker could exploit this vulnerability by sending a crafted IS-IS packet to an affected device after forming an adjacency. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.

 Note: The IS-IS protocol is a routing protocol. To exploit this vulnerability, an attacker must be Layer 2-adjacent to the affected device and have formed an adjacency.

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This information is available to logged-in users.
Data is provided by the National Vulnerability Database (NVD)
Cisco ≫ Ios Xe Version3.2.0se
Cisco ≫ Ios Xe Version3.2.1se
Cisco ≫ Ios Xe Version3.2.2se
Cisco ≫ Ios Xe Version3.2.3se
Cisco ≫ Ios Xe Version3.3.0se
Cisco ≫ Ios Xe Version3.3.0xo
Cisco ≫ Ios Xe Version3.3.1se
Cisco ≫ Ios Xe Version3.3.1xo
Cisco ≫ Ios Xe Version3.3.2se
Cisco ≫ Ios Xe Version3.3.2xo
Cisco ≫ Ios Xe Version3.3.3se
Cisco ≫ Ios Xe Version3.3.4se
Cisco ≫ Ios Xe Version3.3.5se
Cisco ≫ Ios Xe Version3.4.0sg
Cisco ≫ Ios Xe Version3.4.1sg
Cisco ≫ Ios Xe Version3.4.2sg
Cisco ≫ Ios Xe Version3.4.3sg
Cisco ≫ Ios Xe Version3.4.4sg
Cisco ≫ Ios Xe Version3.4.5sg
Cisco ≫ Ios Xe Version3.4.6sg
Cisco ≫ Ios Xe Version3.4.7sg
Cisco ≫ Ios Xe Version3.4.8sg
Cisco ≫ Ios Xe Version3.5.0e
Cisco ≫ Ios Xe Version3.5.1e
Cisco ≫ Ios Xe Version3.5.2e
Cisco ≫ Ios Xe Version3.5.3e
Cisco ≫ Ios Xe Version3.6.0e
Cisco ≫ Ios Xe Version3.6.1e
Cisco ≫ Ios Xe Version3.6.2ae
Cisco ≫ Ios Xe Version3.6.2e
Cisco ≫ Ios Xe Version3.6.3e
Cisco ≫ Ios Xe Version3.6.4e
Cisco ≫ Ios Xe Version3.6.5ae
Cisco ≫ Ios Xe Version3.6.5be
Cisco ≫ Ios Xe Version3.6.5e
Cisco ≫ Ios Xe Version3.6.6e
Cisco ≫ Ios Xe Version3.6.7be
Cisco ≫ Ios Xe Version3.6.7e
Cisco ≫ Ios Xe Version3.6.8e
Cisco ≫ Ios Xe Version3.6.9e
Cisco ≫ Ios Xe Version3.6.10e
Cisco ≫ Ios Xe Version3.7.0bs
Cisco ≫ Ios Xe Version3.7.0e
Cisco ≫ Ios Xe Version3.7.0s
Cisco ≫ Ios Xe Version3.7.1as
Cisco ≫ Ios Xe Version3.7.1e
Cisco ≫ Ios Xe Version3.7.1s
Cisco ≫ Ios Xe Version3.7.2e
Cisco ≫ Ios Xe Version3.7.2s
Cisco ≫ Ios Xe Version3.7.2ts
Cisco ≫ Ios Xe Version3.7.3e
Cisco ≫ Ios Xe Version3.7.3s
Cisco ≫ Ios Xe Version3.7.4as
Cisco ≫ Ios Xe Version3.7.4e
Cisco ≫ Ios Xe Version3.7.4s
Cisco ≫ Ios Xe Version3.7.5e
Cisco ≫ Ios Xe Version3.7.5s
Cisco ≫ Ios Xe Version3.7.6s
Cisco ≫ Ios Xe Version3.7.7s
Cisco ≫ Ios Xe Version3.8.0e
Cisco ≫ Ios Xe Version3.8.0s
Cisco ≫ Ios Xe Version3.8.1e
Cisco ≫ Ios Xe Version3.8.1s
Cisco ≫ Ios Xe Version3.8.2e
Cisco ≫ Ios Xe Version3.8.2s
Cisco ≫ Ios Xe Version3.8.3e
Cisco ≫ Ios Xe Version3.8.4e
Cisco ≫ Ios Xe Version3.8.5ae
Cisco ≫ Ios Xe Version3.8.5e
Cisco ≫ Ios Xe Version3.8.6e
Cisco ≫ Ios Xe Version3.8.7e
Cisco ≫ Ios Xe Version3.8.8e
Cisco ≫ Ios Xe Version3.8.9e
Cisco ≫ Ios Xe Version3.8.10e
Cisco ≫ Ios Xe Version3.8.10ee
Cisco ≫ Ios Xe Version3.9.0as
Cisco ≫ Ios Xe Version3.9.0e
Cisco ≫ Ios Xe Version3.9.0s
Cisco ≫ Ios Xe Version3.9.1as
Cisco ≫ Ios Xe Version3.9.1e
Cisco ≫ Ios Xe Version3.9.1s
Cisco ≫ Ios Xe Version3.9.2e
Cisco ≫ Ios Xe Version3.9.2s
Cisco ≫ Ios Xe Version3.10.0ce
Cisco ≫ Ios Xe Version3.10.0e
Cisco ≫ Ios Xe Version3.10.0s
Cisco ≫ Ios Xe Version3.10.1e
Cisco ≫ Ios Xe Version3.10.1s
Cisco ≫ Ios Xe Version3.10.1xbs
Cisco ≫ Ios Xe Version3.10.2e
Cisco ≫ Ios Xe Version3.10.2s
Cisco ≫ Ios Xe Version3.10.2ts
Cisco ≫ Ios Xe Version3.10.3e
Cisco ≫ Ios Xe Version3.10.3s
Cisco ≫ Ios Xe Version3.10.4s
Cisco ≫ Ios Xe Version3.10.5s
Cisco ≫ Ios Xe Version3.10.6s
Cisco ≫ Ios Xe Version3.10.7s
Cisco ≫ Ios Xe Version3.10.8as
Cisco ≫ Ios Xe Version3.10.8s
Cisco ≫ Ios Xe Version3.10.9s
Cisco ≫ Ios Xe Version3.10.10s
Cisco ≫ Ios Xe Version3.11.0e
Cisco ≫ Ios Xe Version3.11.0s
Cisco ≫ Ios Xe Version3.11.1ae
Cisco ≫ Ios Xe Version3.11.1e
Cisco ≫ Ios Xe Version3.11.1s
Cisco ≫ Ios Xe Version3.11.2e
Cisco ≫ Ios Xe Version3.11.2s
Cisco ≫ Ios Xe Version3.11.3ae
Cisco ≫ Ios Xe Version3.11.3e
Cisco ≫ Ios Xe Version3.11.3s
Cisco ≫ Ios Xe Version3.11.4e
Cisco ≫ Ios Xe Version3.11.4s
Cisco ≫ Ios Xe Version3.11.5e
Cisco ≫ Ios Xe Version3.11.6e
Cisco ≫ Ios Xe Version3.11.7e
Cisco ≫ Ios Xe Version3.11.8e
Cisco ≫ Ios Xe Version3.11.9e
Cisco ≫ Ios Xe Version3.12.0as
Cisco ≫ Ios Xe Version3.12.0s
Cisco ≫ Ios Xe Version3.12.1s
Cisco ≫ Ios Xe Version3.12.2s
Cisco ≫ Ios Xe Version3.12.3s
Cisco ≫ Ios Xe Version3.12.4s
Cisco ≫ Ios Xe Version3.13.0as
Cisco ≫ Ios Xe Version3.13.0s
Cisco ≫ Ios Xe Version3.13.1s
Cisco ≫ Ios Xe Version3.13.2as
Cisco ≫ Ios Xe Version3.13.2s
Cisco ≫ Ios Xe Version3.13.3s
Cisco ≫ Ios Xe Version3.13.4s
Cisco ≫ Ios Xe Version3.13.5as
Cisco ≫ Ios Xe Version3.13.5s
Cisco ≫ Ios Xe Version3.13.6as
Cisco ≫ Ios Xe Version3.13.6s
Cisco ≫ Ios Xe Version3.13.7as
Cisco ≫ Ios Xe Version3.13.7s
Cisco ≫ Ios Xe Version3.13.8s
Cisco ≫ Ios Xe Version3.13.9s
Cisco ≫ Ios Xe Version3.13.10s
Cisco ≫ Ios Xe Version3.14.0s
Cisco ≫ Ios Xe Version3.14.1s
Cisco ≫ Ios Xe Version3.14.2s
Cisco ≫ Ios Xe Version3.14.3s
Cisco ≫ Ios Xe Version3.14.4s
Cisco ≫ Ios Xe Version3.15.0s
Cisco ≫ Ios Xe Version3.15.1cs
Cisco ≫ Ios Xe Version3.15.1s
Cisco ≫ Ios Xe Version3.15.2s
Cisco ≫ Ios Xe Version3.15.3s
Cisco ≫ Ios Xe Version3.15.4s
Cisco ≫ Ios Xe Version3.16.0cs
Cisco ≫ Ios Xe Version3.16.0s
Cisco ≫ Ios Xe Version3.16.1as
Cisco ≫ Ios Xe Version3.16.1s
Cisco ≫ Ios Xe Version3.16.2as
Cisco ≫ Ios Xe Version3.16.2bs
Cisco ≫ Ios Xe Version3.16.2s
Cisco ≫ Ios Xe Version3.16.3as
Cisco ≫ Ios Xe Version3.16.3s
Cisco ≫ Ios Xe Version3.16.4as
Cisco ≫ Ios Xe Version3.16.4bs
Cisco ≫ Ios Xe Version3.16.4ds
Cisco ≫ Ios Xe Version3.16.4s
Cisco ≫ Ios Xe Version3.16.5s
Cisco ≫ Ios Xe Version3.16.6bs
Cisco ≫ Ios Xe Version3.16.6s
Cisco ≫ Ios Xe Version3.16.7as
Cisco ≫ Ios Xe Version3.16.7bs
Cisco ≫ Ios Xe Version3.16.7s
Cisco ≫ Ios Xe Version3.16.8s
Cisco ≫ Ios Xe Version3.16.9s
Cisco ≫ Ios Xe Version3.16.10s
Cisco ≫ Ios Xe Version3.17.0s
Cisco ≫ Ios Xe Version3.17.1as
Cisco ≫ Ios Xe Version3.17.1s
Cisco ≫ Ios Xe Version3.17.2s
Cisco ≫ Ios Xe Version3.17.3s
Cisco ≫ Ios Xe Version3.17.4s
Cisco ≫ Ios Xe Version3.18.0as
Cisco ≫ Ios Xe Version3.18.0s
Cisco ≫ Ios Xe Version3.18.0sp
Cisco ≫ Ios Xe Version3.18.1asp
Cisco ≫ Ios Xe Version3.18.1bsp
Cisco ≫ Ios Xe Version3.18.1csp
Cisco ≫ Ios Xe Version3.18.1s
Cisco ≫ Ios Xe Version3.18.1sp
Cisco ≫ Ios Xe Version3.18.2asp
Cisco ≫ Ios Xe Version3.18.2s
Cisco ≫ Ios Xe Version3.18.2sp
Cisco ≫ Ios Xe Version3.18.3asp
Cisco ≫ Ios Xe Version3.18.3bsp
Cisco ≫ Ios Xe Version3.18.3s
Cisco ≫ Ios Xe Version3.18.3sp
Cisco ≫ Ios Xe Version3.18.4s
Cisco ≫ Ios Xe Version3.18.4sp
Cisco ≫ Ios Xe Version3.18.5sp
Cisco ≫ Ios Xe Version3.18.6sp
Cisco ≫ Ios Xe Version3.18.7sp
Cisco ≫ Ios Xe Version3.18.8asp
Cisco ≫ Ios Xe Version3.18.9sp
Cisco ≫ Ios Xe Version16.1.1
Cisco ≫ Ios Xe Version16.1.2
Cisco ≫ Ios Xe Version16.1.3
Cisco ≫ Ios Xe Version16.2.1
Cisco ≫ Ios Xe Version16.2.2
Cisco ≫ Ios Xe Version16.3.1
Cisco ≫ Ios Xe Version16.3.1a
Cisco ≫ Ios Xe Version16.3.2
Cisco ≫ Ios Xe Version16.3.3
Cisco ≫ Ios Xe Version16.3.4
Cisco ≫ Ios Xe Version16.3.5
Cisco ≫ Ios Xe Version16.3.5b
Cisco ≫ Ios Xe Version16.3.6
Cisco ≫ Ios Xe Version16.3.7
Cisco ≫ Ios Xe Version16.3.8
Cisco ≫ Ios Xe Version16.3.9
Cisco ≫ Ios Xe Version16.3.10
Cisco ≫ Ios Xe Version16.3.11
Cisco ≫ Ios Xe Version16.4.1
Cisco ≫ Ios Xe Version16.4.2
Cisco ≫ Ios Xe Version16.4.3
Cisco ≫ Ios Xe Version16.5.1
Cisco ≫ Ios Xe Version16.5.1a
Cisco ≫ Ios Xe Version16.5.1b
Cisco ≫ Ios Xe Version16.5.2
Cisco ≫ Ios Xe Version16.5.3
Cisco ≫ Ios Xe Version16.6.1
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 Version16.6.5
Cisco ≫ Ios Xe Version16.6.5a
Cisco ≫ Ios Xe Version16.6.6
Cisco ≫ Ios Xe Version16.6.7
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 Version16.9.1s
Cisco ≫ Ios Xe Version16.9.2
Cisco ≫ Ios Xe Version16.9.3
Cisco ≫ Ios Xe Version16.9.3a
Cisco ≫ Ios Xe Version16.9.4
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 Version16.10.1
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 Version16.11.1s
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 Version16.12.1z1
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 Version16.12.3
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 Version17.1.1
Cisco ≫ Ios Xe Version17.1.1a
Cisco ≫ Ios Xe Version17.1.1s
Cisco ≫ Ios Xe Version17.1.1t
Cisco ≫ Ios Xe Version17.1.3
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 Version17.3.4
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 Version17.4.2
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 Version17.6.1w
Cisco ≫ Ios Xe Version17.6.1x
Cisco ≫ Ios Xe Version17.6.1y
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 Version17.7.1
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 Version17.10.1
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 Version17.11.99sw
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.05% 0.135
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
psirt@cisco.com 7.4 2.8 4
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.