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ghsa-h59x-f52x-4wxj
Vulnerability from github
Published
2024-03-27 18:32
Modified
2024-03-27 18:32
Severity ?
VLAI Severity ?
Details
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.
{
"affected": [],
"aliases": [
"CVE-2024-20312"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-27T17:15:52Z",
"severity": "HIGH"
},
"details": "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.\n\n 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.\n\n 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.",
"id": "GHSA-h59x-f52x-4wxj",
"modified": "2024-03-27T18:32:38Z",
"published": "2024-03-27T18:32:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-20312"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-isis-sGjyOUHX"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
CVE-2024-20312 (GCVE-0-2024-20312)
Vulnerability from cvelistv5
Published
2024-03-27 16:56
Modified
2025-08-26 20:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
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.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | IOS |
Version: 15.2(1)S Version: 15.2(2)S Version: 15.2(1)S1 Version: 15.2(4)S Version: 15.2(1)S2 Version: 15.2(2)S1 Version: 15.2(2)S2 Version: 15.2(2)S0a Version: 15.2(2)S0c Version: 15.2(4)S1 Version: 15.2(4)S4 Version: 15.2(4)S6 Version: 15.2(4)S2 Version: 15.2(4)S5 Version: 15.2(4)S3 Version: 15.2(4)S3a Version: 15.2(4)S4a Version: 15.2(4)S7 Version: 15.3(1)T Version: 15.3(2)T Version: 15.3(1)T1 Version: 15.3(1)T2 Version: 15.3(1)T3 Version: 15.3(1)T4 Version: 15.3(2)T1 Version: 15.3(2)T2 Version: 15.3(2)T3 Version: 15.3(2)T4 Version: 15.1(2)SG Version: 15.1(2)SG1 Version: 15.1(2)SG2 Version: 15.1(2)SG3 Version: 15.1(2)SG4 Version: 15.1(2)SG5 Version: 15.1(2)SG6 Version: 15.1(2)SG7 Version: 15.1(2)SG8 Version: 15.2(4)M Version: 15.2(4)M1 Version: 15.2(4)M2 Version: 15.2(4)M4 Version: 15.2(4)M3 Version: 15.2(4)M5 Version: 15.2(4)M8 Version: 15.2(4)M10 Version: 15.2(4)M7 Version: 15.2(4)M6 Version: 15.2(4)M9 Version: 15.2(4)M6a Version: 15.2(4)M11 Version: 15.0(1)EX Version: 15.2(3)GC Version: 15.2(3)GC1 Version: 15.2(4)GC Version: 15.2(4)GC1 Version: 15.2(4)GC2 Version: 15.2(4)GC3 Version: 15.1(1)SY Version: 15.1(1)SY1 Version: 15.1(2)SY Version: 15.1(2)SY1 Version: 15.1(2)SY2 Version: 15.1(1)SY2 Version: 15.1(1)SY3 Version: 15.1(2)SY3 Version: 15.1(1)SY4 Version: 15.1(2)SY4 Version: 15.1(1)SY5 Version: 15.1(2)SY5 Version: 15.1(2)SY4a Version: 15.1(1)SY6 Version: 15.1(2)SY6 Version: 15.1(2)SY7 Version: 15.1(2)SY8 Version: 15.1(2)SY9 Version: 15.1(2)SY10 Version: 15.1(2)SY11 Version: 15.1(2)SY12 Version: 15.1(2)SY13 Version: 15.1(2)SY14 Version: 15.1(2)SY15 Version: 15.1(2)SY16 Version: 15.3(1)S Version: 15.3(2)S Version: 15.3(3)S Version: 15.3(1)S2 Version: 15.3(1)S1 Version: 15.3(2)S2 Version: 15.3(2)S1 Version: 15.3(3)S1 Version: 15.3(3)S2 Version: 15.3(3)S3 Version: 15.3(3)S6 Version: 15.3(3)S4 Version: 15.3(3)S1a Version: 15.3(3)S5 Version: 15.3(3)S7 Version: 15.3(3)S8 Version: 15.3(3)S9 Version: 15.3(3)S10 Version: 15.3(3)S8a Version: 15.4(1)T Version: 15.4(2)T Version: 15.4(1)T2 Version: 15.4(1)T1 Version: 15.4(1)T3 Version: 15.4(2)T1 Version: 15.4(2)T3 Version: 15.4(2)T2 Version: 15.4(1)T4 Version: 15.4(2)T4 Version: 15.2(1)E Version: 15.2(2)E Version: 15.2(1)E1 Version: 15.2(3)E Version: 15.2(1)E2 Version: 15.2(1)E3 Version: 15.2(2)E1 Version: 15.2(4)E Version: 15.2(3)E1 Version: 15.2(2)E2 Version: 15.2(2)E3 Version: 15.2(2a)E2 Version: 15.2(3)E2 Version: 15.2(3a)E Version: 15.2(3)E3 Version: 15.2(4)E1 Version: 15.2(2)E4 Version: 15.2(2)E5 Version: 15.2(4)E2 Version: 15.2(3)E4 Version: 15.2(5)E Version: 15.2(4)E3 Version: 15.2(2)E6 Version: 15.2(5)E1 Version: 15.2(2)E5a Version: 15.2(3)E5 Version: 15.2(2)E5b Version: 15.2(5a)E1 Version: 15.2(4)E4 Version: 15.2(2)E7 Version: 15.2(5)E2 Version: 15.2(6)E Version: 15.2(5)E2b Version: 15.2(4)E5 Version: 15.2(5)E2c Version: 15.2(2)E8 Version: 15.2(6)E0a Version: 15.2(6)E1 Version: 15.2(2)E7b Version: 15.2(4)E5a Version: 15.2(6)E0c Version: 15.2(4)E6 Version: 15.2(6)E2 Version: 15.2(2)E9 Version: 15.2(4)E7 Version: 15.2(7)E Version: 15.2(2)E10 Version: 15.2(4)E8 Version: 15.2(6)E2a Version: 15.2(7)E1 Version: 15.2(7)E0b Version: 15.2(7)E0s Version: 15.2(6)E3 Version: 15.2(4)E9 Version: 15.2(7)E2 Version: 15.2(7a)E0b Version: 15.2(4)E10 Version: 15.2(7)E3 Version: 15.2(7)E1a Version: 15.2(7b)E0b Version: 15.2(4)E10a Version: 15.2(7)E4 Version: 15.2(8)E Version: 15.2(8)E1 Version: 15.2(7)E5 Version: 15.2(7)E6 Version: 15.2(8)E2 Version: 15.2(4)E10d Version: 15.2(7)E7 Version: 15.2(8)E3 Version: 15.2(7)E8 Version: 15.2(8)E4 Version: 15.2(4)E10e Version: 15.2(7)E9 Version: 15.2(8)E5 Version: 15.4(1)S Version: 15.4(2)S Version: 15.4(3)S Version: 15.4(1)S1 Version: 15.4(1)S2 Version: 15.4(2)S1 Version: 15.4(1)S3 Version: 15.4(3)S1 Version: 15.4(2)S2 Version: 15.4(3)S2 Version: 15.4(3)S3 Version: 15.4(1)S4 Version: 15.4(2)S3 Version: 15.4(2)S4 Version: 15.4(3)S4 Version: 15.4(3)S5 Version: 15.4(3)S6 Version: 15.4(3)S7 Version: 15.4(3)S6a Version: 15.4(3)S8 Version: 15.4(3)S9 Version: 15.4(3)S10 Version: 15.3(3)M Version: 15.3(3)M1 Version: 15.3(3)M2 Version: 15.3(3)M3 Version: 15.3(3)M5 Version: 15.3(3)M4 Version: 15.3(3)M6 Version: 15.3(3)M7 Version: 15.3(3)M8 Version: 15.3(3)M9 Version: 15.3(3)M10 Version: 15.3(3)M8a Version: 15.2(1)EY Version: 15.2(1)SY Version: 15.2(1)SY1 Version: 15.2(1)SY0a Version: 15.2(1)SY2 Version: 15.2(2)SY Version: 15.2(1)SY1a Version: 15.2(2)SY1 Version: 15.2(2)SY2 Version: 15.2(1)SY3 Version: 15.2(1)SY4 Version: 15.2(2)SY3 Version: 15.2(1)SY5 Version: 15.2(1)SY6 Version: 15.2(1)SY7 Version: 15.2(1)SY8 Version: 15.4(1)CG Version: 15.4(1)CG1 Version: 15.4(2)CG Version: 15.5(1)S Version: 15.5(2)S Version: 15.5(1)S1 Version: 15.5(3)S Version: 15.5(1)S2 Version: 15.5(1)S3 Version: 15.5(2)S1 Version: 15.5(2)S2 Version: 15.5(3)S1 Version: 15.5(3)S1a Version: 15.5(2)S3 Version: 15.5(3)S2 Version: 15.5(3)S0a Version: 15.5(3)S3 Version: 15.5(1)S4 Version: 15.5(2)S4 Version: 15.5(3)S4 Version: 15.5(3)S5 Version: 15.5(3)S6 Version: 15.5(3)S6a Version: 15.5(3)S7 Version: 15.5(3)S6b Version: 15.5(3)S8 Version: 15.5(3)S9 Version: 15.5(3)S10 Version: 15.5(3)S9a Version: 15.2(2)EB Version: 15.2(2)EB1 Version: 15.2(2)EB2 Version: 15.2(6)EB Version: 15.5(1)T Version: 15.5(1)T1 Version: 15.5(2)T Version: 15.5(1)T2 Version: 15.5(1)T3 Version: 15.5(2)T1 Version: 15.5(2)T2 Version: 15.5(2)T3 Version: 15.5(2)T4 Version: 15.5(1)T4 Version: 15.2(2)EA Version: 15.2(2)EA1 Version: 15.2(2)EA2 Version: 15.2(3)EA Version: 15.2(4)EA Version: 15.2(4)EA1 Version: 15.2(2)EA3 Version: 15.2(4)EA3 Version: 15.2(5)EA Version: 15.2(4)EA4 Version: 15.2(4)EA5 Version: 15.2(4)EA6 Version: 15.2(4)EA7 Version: 15.2(4)EA8 Version: 15.2(4)EA9 Version: 15.2(4)EA9a Version: 15.5(3)M Version: 15.5(3)M1 Version: 15.5(3)M0a Version: 15.5(3)M2 Version: 15.5(3)M3 Version: 15.5(3)M4 Version: 15.5(3)M4a Version: 15.5(3)M5 Version: 15.5(3)M6 Version: 15.5(3)M7 Version: 15.5(3)M6a Version: 15.5(3)M8 Version: 15.5(3)M9 Version: 15.5(3)M10 Version: 15.5(3)SN Version: 15.6(1)S Version: 15.6(2)S Version: 15.6(2)S1 Version: 15.6(1)S1 Version: 15.6(1)S2 Version: 15.6(2)S2 Version: 15.6(1)S3 Version: 15.6(2)S3 Version: 15.6(1)S4 Version: 15.6(2)S4 Version: 15.6(1)T Version: 15.6(2)T Version: 15.6(1)T0a Version: 15.6(1)T1 Version: 15.6(2)T1 Version: 15.6(1)T2 Version: 15.6(2)T2 Version: 15.6(1)T3 Version: 15.6(2)T3 Version: 15.3(1)SY Version: 15.3(1)SY1 Version: 15.3(1)SY2 Version: 15.6(2)SP Version: 15.6(2)SP1 Version: 15.6(2)SP2 Version: 15.6(2)SP3 Version: 15.6(2)SP4 Version: 15.6(2)SP5 Version: 15.6(2)SP6 Version: 15.6(2)SP7 Version: 15.6(2)SP8 Version: 15.6(2)SP9 Version: 15.6(2)SP10 Version: 15.6(2)SN Version: 15.6(3)M Version: 15.6(3)M1 Version: 15.6(3)M0a Version: 15.6(3)M1b Version: 15.6(3)M2 Version: 15.6(3)M3 Version: 15.6(3)M3a Version: 15.6(3)M4 Version: 15.6(3)M5 Version: 15.6(3)M6 Version: 15.6(3)M7 Version: 15.6(3)M6a Version: 15.6(3)M6b Version: 15.6(3)M8 Version: 15.6(3)M9 Version: 15.2(4)EC1 Version: 15.2(4)EC2 Version: 15.4(1)SY Version: 15.4(1)SY1 Version: 15.4(1)SY2 Version: 15.4(1)SY3 Version: 15.4(1)SY4 Version: 15.5(1)SY Version: 15.5(1)SY1 Version: 15.5(1)SY2 Version: 15.5(1)SY3 Version: 15.5(1)SY4 Version: 15.5(1)SY5 Version: 15.5(1)SY6 Version: 15.5(1)SY7 Version: 15.5(1)SY8 Version: 15.5(1)SY9 Version: 15.5(1)SY10 Version: 15.5(1)SY11 Version: 15.5(1)SY12 Version: 15.7(3)M Version: 15.7(3)M1 Version: 15.7(3)M0a Version: 15.7(3)M3 Version: 15.7(3)M2 Version: 15.7(3)M4 Version: 15.7(3)M5 Version: 15.7(3)M4a Version: 15.7(3)M4b Version: 15.7(3)M6 Version: 15.7(3)M7 Version: 15.7(3)M8 Version: 15.7(3)M9 Version: 15.8(3)M Version: 15.8(3)M1 Version: 15.8(3)M0a Version: 15.8(3)M0b Version: 15.8(3)M2 Version: 15.8(3)M1a Version: 15.8(3)M3 Version: 15.8(3)M2a Version: 15.8(3)M4 Version: 15.8(3)M3a Version: 15.8(3)M3b Version: 15.8(3)M5 Version: 15.8(3)M6 Version: 15.8(3)M7 Version: 15.8(3)M8 Version: 15.8(3)M9 Version: 15.9(3)M Version: 15.9(3)M1 Version: 15.9(3)M0a Version: 15.9(3)M2 Version: 15.9(3)M3 Version: 15.9(3)M2a Version: 15.9(3)M3a Version: 15.9(3)M4 Version: 15.9(3)M3b Version: 15.9(3)M5 Version: 15.9(3)M4a Version: 15.9(3)M6 Version: 15.9(3)M7 Version: 15.9(3)M6a Version: 15.9(3)M6b Version: 15.9(3)M8 Version: 15.9(3)M7a Version: 15.9(3)M8b |
|||||||
|
|||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-20312",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-03-28T18:01:49.784231Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-08-26T20:06:08.344Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-01T21:59:42.142Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "cisco-sa-isis-sGjyOUHX",
"tags": [
"x_transferred"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-isis-sGjyOUHX"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "IOS",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "15.2(1)S"
},
{
"status": "affected",
"version": "15.2(2)S"
},
{
"status": "affected",
"version": "15.2(1)S1"
},
{
"status": "affected",
"version": "15.2(4)S"
},
{
"status": "affected",
"version": "15.2(1)S2"
},
{
"status": "affected",
"version": "15.2(2)S1"
},
{
"status": "affected",
"version": "15.2(2)S2"
},
{
"status": "affected",
"version": "15.2(2)S0a"
},
{
"status": "affected",
"version": "15.2(2)S0c"
},
{
"status": "affected",
"version": "15.2(4)S1"
},
{
"status": "affected",
"version": "15.2(4)S4"
},
{
"status": "affected",
"version": "15.2(4)S6"
},
{
"status": "affected",
"version": "15.2(4)S2"
},
{
"status": "affected",
"version": "15.2(4)S5"
},
{
"status": "affected",
"version": "15.2(4)S3"
},
{
"status": "affected",
"version": "15.2(4)S3a"
},
{
"status": "affected",
"version": "15.2(4)S4a"
},
{
"status": "affected",
"version": "15.2(4)S7"
},
{
"status": "affected",
"version": "15.3(1)T"
},
{
"status": "affected",
"version": "15.3(2)T"
},
{
"status": "affected",
"version": "15.3(1)T1"
},
{
"status": "affected",
"version": "15.3(1)T2"
},
{
"status": "affected",
"version": "15.3(1)T3"
},
{
"status": "affected",
"version": "15.3(1)T4"
},
{
"status": "affected",
"version": "15.3(2)T1"
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{
"status": "affected",
"version": "15.3(2)T2"
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{
"status": "affected",
"version": "15.3(2)T3"
},
{
"status": "affected",
"version": "15.3(2)T4"
},
{
"status": "affected",
"version": "15.1(2)SG"
},
{
"status": "affected",
"version": "15.1(2)SG1"
},
{
"status": "affected",
"version": "15.1(2)SG2"
},
{
"status": "affected",
"version": "15.1(2)SG3"
},
{
"status": "affected",
"version": "15.1(2)SG4"
},
{
"status": "affected",
"version": "15.1(2)SG5"
},
{
"status": "affected",
"version": "15.1(2)SG6"
},
{
"status": "affected",
"version": "15.1(2)SG7"
},
{
"status": "affected",
"version": "15.1(2)SG8"
},
{
"status": "affected",
"version": "15.2(4)M"
},
{
"status": "affected",
"version": "15.2(4)M1"
},
{
"status": "affected",
"version": "15.2(4)M2"
},
{
"status": "affected",
"version": "15.2(4)M4"
},
{
"status": "affected",
"version": "15.2(4)M3"
},
{
"status": "affected",
"version": "15.2(4)M5"
},
{
"status": "affected",
"version": "15.2(4)M8"
},
{
"status": "affected",
"version": "15.2(4)M10"
},
{
"status": "affected",
"version": "15.2(4)M7"
},
{
"status": "affected",
"version": "15.2(4)M6"
},
{
"status": "affected",
"version": "15.2(4)M9"
},
{
"status": "affected",
"version": "15.2(4)M6a"
},
{
"status": "affected",
"version": "15.2(4)M11"
},
{
"status": "affected",
"version": "15.0(1)EX"
},
{
"status": "affected",
"version": "15.2(3)GC"
},
{
"status": "affected",
"version": "15.2(3)GC1"
},
{
"status": "affected",
"version": "15.2(4)GC"
},
{
"status": "affected",
"version": "15.2(4)GC1"
},
{
"status": "affected",
"version": "15.2(4)GC2"
},
{
"status": "affected",
"version": "15.2(4)GC3"
},
{
"status": "affected",
"version": "15.1(1)SY"
},
{
"status": "affected",
"version": "15.1(1)SY1"
},
{
"status": "affected",
"version": "15.1(2)SY"
},
{
"status": "affected",
"version": "15.1(2)SY1"
},
{
"status": "affected",
"version": "15.1(2)SY2"
},
{
"status": "affected",
"version": "15.1(1)SY2"
},
{
"status": "affected",
"version": "15.1(1)SY3"
},
{
"status": "affected",
"version": "15.1(2)SY3"
},
{
"status": "affected",
"version": "15.1(1)SY4"
},
{
"status": "affected",
"version": "15.1(2)SY4"
},
{
"status": "affected",
"version": "15.1(1)SY5"
},
{
"status": "affected",
"version": "15.1(2)SY5"
},
{
"status": "affected",
"version": "15.1(2)SY4a"
},
{
"status": "affected",
"version": "15.1(1)SY6"
},
{
"status": "affected",
"version": "15.1(2)SY6"
},
{
"status": "affected",
"version": "15.1(2)SY7"
},
{
"status": "affected",
"version": "15.1(2)SY8"
},
{
"status": "affected",
"version": "15.1(2)SY9"
},
{
"status": "affected",
"version": "15.1(2)SY10"
},
{
"status": "affected",
"version": "15.1(2)SY11"
},
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{
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{
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{
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{
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{
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{
"status": "affected",
"version": "16.8.1"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "16.8.1b"
},
{
"status": "affected",
"version": "16.8.1s"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "16.8.1d"
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{
"status": "affected",
"version": "16.8.2"
},
{
"status": "affected",
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{
"status": "affected",
"version": "16.8.3"
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{
"status": "affected",
"version": "16.9.1"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "16.9.1a"
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{
"status": "affected",
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{
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{
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{
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{
"status": "affected",
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{
"status": "affected",
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{
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{
"status": "affected",
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{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
"version": "16.10.1"
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{
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{
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{
"status": "affected",
"version": "16.10.1s"
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{
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},
{
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{
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{
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{
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{
"status": "affected",
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},
{
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{
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{
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{
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{
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{
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{
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},
{
"status": "affected",
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{
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{
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{
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{
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{
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},
{
"status": "affected",
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{
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{
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{
"status": "affected",
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{
"status": "affected",
"version": "16.12.1y"
},
{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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{
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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},
{
"status": "affected",
"version": "16.12.3a"
},
{
"status": "affected",
"version": "16.12.4a"
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{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
"version": "16.12.7"
},
{
"status": "affected",
"version": "16.12.9"
},
{
"status": "affected",
"version": "16.12.10"
},
{
"status": "affected",
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{
"status": "affected",
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{
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{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
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},
{
"status": "affected",
"version": "3.11.4E"
},
{
"status": "affected",
"version": "3.11.3aE"
},
{
"status": "affected",
"version": "3.11.5E"
},
{
"status": "affected",
"version": "3.11.6E"
},
{
"status": "affected",
"version": "3.11.7E"
},
{
"status": "affected",
"version": "3.11.8E"
},
{
"status": "affected",
"version": "3.11.9E"
},
{
"status": "affected",
"version": "17.1.1"
},
{
"status": "affected",
"version": "17.1.1a"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "17.1.1t"
},
{
"status": "affected",
"version": "17.1.3"
},
{
"status": "affected",
"version": "17.2.1"
},
{
"status": "affected",
"version": "17.2.1r"
},
{
"status": "affected",
"version": "17.2.1a"
},
{
"status": "affected",
"version": "17.2.1v"
},
{
"status": "affected",
"version": "17.2.2"
},
{
"status": "affected",
"version": "17.2.3"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "17.3.2"
},
{
"status": "affected",
"version": "17.3.3"
},
{
"status": "affected",
"version": "17.3.1a"
},
{
"status": "affected",
"version": "17.3.1w"
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{
"status": "affected",
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},
{
"status": "affected",
"version": "17.3.1x"
},
{
"status": "affected",
"version": "17.3.1z"
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{
"status": "affected",
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},
{
"status": "affected",
"version": "17.3.5"
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{
"status": "affected",
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},
{
"status": "affected",
"version": "17.3.6"
},
{
"status": "affected",
"version": "17.3.4b"
},
{
"status": "affected",
"version": "17.3.4c"
},
{
"status": "affected",
"version": "17.3.5a"
},
{
"status": "affected",
"version": "17.3.5b"
},
{
"status": "affected",
"version": "17.3.7"
},
{
"status": "affected",
"version": "17.3.8"
},
{
"status": "affected",
"version": "17.3.8a"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "17.4.2"
},
{
"status": "affected",
"version": "17.4.1a"
},
{
"status": "affected",
"version": "17.4.1b"
},
{
"status": "affected",
"version": "17.4.2a"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "17.5.1a"
},
{
"status": "affected",
"version": "17.6.1"
},
{
"status": "affected",
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},
{
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"version": "17.6.1w"
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{
"status": "affected",
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{
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{
"status": "affected",
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{
"status": "affected",
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{
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{
"status": "affected",
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},
{
"status": "affected",
"version": "17.6.4"
},
{
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"version": "17.6.1z1"
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
"version": "17.7.1a"
},
{
"status": "affected",
"version": "17.7.1b"
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{
"status": "affected",
"version": "17.7.2"
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{
"status": "affected",
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},
{
"status": "affected",
"version": "17.10.1a"
},
{
"status": "affected",
"version": "17.10.1b"
},
{
"status": "affected",
"version": "17.8.1"
},
{
"status": "affected",
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{
"status": "affected",
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},
{
"status": "affected",
"version": "17.9.1w"
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{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
"version": "17.9.1x"
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{
"status": "affected",
"version": "17.9.1y"
},
{
"status": "affected",
"version": "17.9.3"
},
{
"status": "affected",
"version": "17.9.2a"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "17.9.3a"
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{
"status": "affected",
"version": "17.9.1y1"
},
{
"status": "affected",
"version": "17.11.1"
},
{
"status": "affected",
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},
{
"status": "affected",
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}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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.\r\n\r 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.\r\n\r 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."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "NULL Pointer Dereference",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-03-27T16:56:42.490Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-isis-sGjyOUHX",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-isis-sGjyOUHX"
}
],
"source": {
"advisory": "cisco-sa-isis-sGjyOUHX",
"defects": [
"CSCwf54007"
],
"discovery": "INTERNAL"
}
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2024-20312",
"datePublished": "2024-03-27T16:56:42.490Z",
"dateReserved": "2023-11-08T15:08:07.631Z",
"dateUpdated": "2025-08-26T20:06:08.344Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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