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GHSA-P84X-683Q-C49J
Vulnerability from github – Published: 2025-05-07 18:30 – Updated: 2025-05-07 18:30
VLAI?
Details
A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service (DoS) condition.
This vulnerability is due to improper handling of DHCP request packets. An attacker could exploit this vulnerability by sending DHCP request packets to an affected device. A successful exploit could allow the attacker to cause packets to wedge in the queue, creating a DoS condition for downstream devices of the affected system and requiring that the system restart to drain the queue.
Note: This vulnerability can be exploited with either unicast or broadcast DHCP packets on a VLAN that does not have DHCP snooping enabled.
Severity ?
8.6 (High)
{
"affected": [],
"aliases": [
"CVE-2025-20162"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-07T18:15:37Z",
"severity": "HIGH"
},
"details": "A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service (DoS) condition.\n\n This vulnerability is due to improper handling of DHCP request packets. An attacker could exploit this vulnerability by sending DHCP request packets to an affected device. A successful exploit could allow the attacker to cause packets to wedge in the queue, creating a DoS condition for downstream devices of the affected system and requiring that the system restart to drain the queue.\n\n Note: This vulnerability can be exploited with either unicast or broadcast DHCP packets on a VLAN that does not have DHCP snooping enabled.",
"id": "GHSA-p84x-683q-c49j",
"modified": "2025-05-07T18:30:49Z",
"published": "2025-05-07T18:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20162"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-dhcpsn-dos-xBn8Mtks"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
CVE-2025-20162 (GCVE-0-2025-20162)
Vulnerability from cvelistv5 – Published: 2025-05-07 17:38 – Updated: 2025-05-07 19:42
VLAI?
EPSS
Summary
A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service (DoS) condition.
This vulnerability is due to improper handling of DHCP request packets. An attacker could exploit this vulnerability by sending DHCP request packets to an affected device. A successful exploit could allow the attacker to cause packets to wedge in the queue, creating a DoS condition for downstream devices of the affected system and requiring that the system restart to drain the queue.
Note: This vulnerability can be exploited with either unicast or broadcast DHCP packets on a VLAN that does not have DHCP snooping enabled.
Severity ?
8.6 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco IOS XE Software |
Affected:
16.11.1
Affected: 16.11.1a Affected: 16.11.2 Affected: 16.11.1s Affected: 16.12.1 Affected: 16.12.1s Affected: 16.12.1a Affected: 16.12.1c Affected: 16.12.2 Affected: 16.12.3 Affected: 16.12.8 Affected: 16.12.2s Affected: 16.12.4 Affected: 16.12.3s Affected: 16.12.5 Affected: 16.12.6 Affected: 16.12.7 Affected: 17.1.1 Affected: 17.1.1s Affected: 17.1.1t Affected: 17.1.3 Affected: 17.2.1 Affected: 17.2.1r Affected: 17.2.1v Affected: 17.2.2 Affected: 17.2.3 Affected: 17.3.1 Affected: 17.3.2 Affected: 17.3.3 Affected: 17.3.1a Affected: 17.3.4 Affected: 17.3.5 Affected: 17.3.4a Affected: 17.3.6 Affected: 17.3.7 Affected: 17.3.8 Affected: 17.3.8a Affected: 17.4.1 Affected: 17.4.2 Affected: 17.4.1a Affected: 17.4.1b Affected: 17.5.1 Affected: 17.5.1a Affected: 17.6.1 Affected: 17.6.2 Affected: 17.6.1a Affected: 17.6.3 Affected: 17.6.1y Affected: 17.6.3a Affected: 17.6.4 Affected: 17.6.5 Affected: 17.6.6 Affected: 17.6.6a Affected: 17.6.5a Affected: 17.6.7 Affected: 17.6.8 Affected: 17.6.8a Affected: 17.7.1 Affected: 17.7.1a Affected: 17.7.2 Affected: 17.10.1 Affected: 17.10.1a Affected: 17.8.1 Affected: 17.8.1a Affected: 17.9.1 Affected: 17.9.2 Affected: 17.9.1a Affected: 17.9.3 Affected: 17.9.2a Affected: 17.9.3a Affected: 17.9.4 Affected: 17.9.5 Affected: 17.9.4a Affected: 17.9.5a Affected: 17.9.6 Affected: 17.9.5e Affected: 17.9.5f Affected: 17.11.1 Affected: 17.11.1a Affected: 17.12.1 Affected: 17.12.1a Affected: 17.12.2 Affected: 17.12.3 Affected: 17.12.4 Affected: 17.12.3a Affected: 17.12.4a Affected: 17.12.4b Affected: 17.13.1 Affected: 17.13.1a Affected: 17.14.1 Affected: 17.14.1a Affected: 17.15.1 Affected: 17.15.1a |
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{
"other": {
"content": {
"id": "CVE-2025-20162",
"options": [
{
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{
"Automatable": "yes"
},
{
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],
"role": "CISA Coordinator",
"timestamp": "2025-05-07T18:56:53.926637Z",
"version": "2.0.3"
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"providerMetadata": {
"dateUpdated": "2025-05-07T19:42:11.086Z",
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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"cna": {
"affected": [
{
"product": "Cisco IOS XE Software",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "16.11.1"
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{
"status": "affected",
"version": "16.11.1a"
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{
"status": "affected",
"version": "16.11.2"
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{
"status": "affected",
"version": "16.11.1s"
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{
"status": "affected",
"version": "16.12.1"
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{
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{
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{
"status": "affected",
"version": "16.12.3"
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{
"status": "affected",
"version": "16.12.8"
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{
"status": "affected",
"version": "16.12.2s"
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{
"status": "affected",
"version": "16.12.4"
},
{
"status": "affected",
"version": "16.12.3s"
},
{
"status": "affected",
"version": "16.12.5"
},
{
"status": "affected",
"version": "16.12.6"
},
{
"status": "affected",
"version": "16.12.7"
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{
"status": "affected",
"version": "17.1.1"
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{
"status": "affected",
"version": "17.1.1s"
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{
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{
"status": "affected",
"version": "17.1.3"
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{
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{
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"version": "17.2.1r"
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{
"status": "affected",
"version": "17.2.1v"
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{
"status": "affected",
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{
"status": "affected",
"version": "17.2.3"
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{
"status": "affected",
"version": "17.3.1"
},
{
"status": "affected",
"version": "17.3.2"
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{
"status": "affected",
"version": "17.3.3"
},
{
"status": "affected",
"version": "17.3.1a"
},
{
"status": "affected",
"version": "17.3.4"
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{
"status": "affected",
"version": "17.3.5"
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{
"status": "affected",
"version": "17.3.4a"
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{
"status": "affected",
"version": "17.3.6"
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{
"status": "affected",
"version": "17.3.7"
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{
"status": "affected",
"version": "17.3.8"
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{
"status": "affected",
"version": "17.3.8a"
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{
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"version": "17.4.1"
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{
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"version": "17.4.2"
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{
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"version": "17.4.1a"
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{
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"version": "17.4.1b"
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{
"status": "affected",
"version": "17.5.1"
},
{
"status": "affected",
"version": "17.5.1a"
},
{
"status": "affected",
"version": "17.6.1"
},
{
"status": "affected",
"version": "17.6.2"
},
{
"status": "affected",
"version": "17.6.1a"
},
{
"status": "affected",
"version": "17.6.3"
},
{
"status": "affected",
"version": "17.6.1y"
},
{
"status": "affected",
"version": "17.6.3a"
},
{
"status": "affected",
"version": "17.6.4"
},
{
"status": "affected",
"version": "17.6.5"
},
{
"status": "affected",
"version": "17.6.6"
},
{
"status": "affected",
"version": "17.6.6a"
},
{
"status": "affected",
"version": "17.6.5a"
},
{
"status": "affected",
"version": "17.6.7"
},
{
"status": "affected",
"version": "17.6.8"
},
{
"status": "affected",
"version": "17.6.8a"
},
{
"status": "affected",
"version": "17.7.1"
},
{
"status": "affected",
"version": "17.7.1a"
},
{
"status": "affected",
"version": "17.7.2"
},
{
"status": "affected",
"version": "17.10.1"
},
{
"status": "affected",
"version": "17.10.1a"
},
{
"status": "affected",
"version": "17.8.1"
},
{
"status": "affected",
"version": "17.8.1a"
},
{
"status": "affected",
"version": "17.9.1"
},
{
"status": "affected",
"version": "17.9.2"
},
{
"status": "affected",
"version": "17.9.1a"
},
{
"status": "affected",
"version": "17.9.3"
},
{
"status": "affected",
"version": "17.9.2a"
},
{
"status": "affected",
"version": "17.9.3a"
},
{
"status": "affected",
"version": "17.9.4"
},
{
"status": "affected",
"version": "17.9.5"
},
{
"status": "affected",
"version": "17.9.4a"
},
{
"status": "affected",
"version": "17.9.5a"
},
{
"status": "affected",
"version": "17.9.6"
},
{
"status": "affected",
"version": "17.9.5e"
},
{
"status": "affected",
"version": "17.9.5f"
},
{
"status": "affected",
"version": "17.11.1"
},
{
"status": "affected",
"version": "17.11.1a"
},
{
"status": "affected",
"version": "17.12.1"
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{
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{
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{
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"version": "17.12.3"
},
{
"status": "affected",
"version": "17.12.4"
},
{
"status": "affected",
"version": "17.12.3a"
},
{
"status": "affected",
"version": "17.12.4a"
},
{
"status": "affected",
"version": "17.12.4b"
},
{
"status": "affected",
"version": "17.13.1"
},
{
"status": "affected",
"version": "17.13.1a"
},
{
"status": "affected",
"version": "17.14.1"
},
{
"status": "affected",
"version": "17.14.1a"
},
{
"status": "affected",
"version": "17.15.1"
},
{
"status": "affected",
"version": "17.15.1a"
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"lang": "en",
"value": "A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper handling of DHCP request packets. An attacker could exploit this vulnerability by sending DHCP request packets to an affected device. A successful exploit could allow the attacker to cause packets to wedge in the queue, creating a DoS condition for downstream devices of the affected system and requiring that the system restart to drain the queue.\r\n\r Note: This vulnerability can be exploited with either unicast or broadcast DHCP packets on a VLAN that does not have DHCP snooping enabled."
}
],
"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": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-400",
"description": "Uncontrolled Resource Consumption",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-07T17:38:25.634Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-iosxe-dhcpsn-dos-xBn8Mtks",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-dhcpsn-dos-xBn8Mtks"
}
],
"source": {
"advisory": "cisco-sa-iosxe-dhcpsn-dos-xBn8Mtks",
"defects": [
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],
"discovery": "EXTERNAL"
}
}
},
"cveMetadata": {
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"assignerShortName": "cisco",
"cveId": "CVE-2025-20162",
"datePublished": "2025-05-07T17:38:25.634Z",
"dateReserved": "2024-10-10T19:15:13.217Z",
"dateUpdated": "2025-05-07T19:42:11.086Z",
"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 observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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