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WID-SEC-W-2025-0973
Vulnerability from csaf_certbund - Published: 2025-05-07 22:00 - Updated: 2025-05-07 22:00Summary
Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers: Schwachstelle ermöglicht Denial of Service
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das für Cisco Geräte wie z. B. Router und Switches eingesetzt wird.
Angriff
Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- CISCO Appliance
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"text": "Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das f\u00fcr Cisco Ger\u00e4te wie z. B. Router und Switches eingesetzt wird.",
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"text": "Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
"title": "Angriff"
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},
{
"category": "external",
"summary": "Cisco Security Advisory cisco-sa-asr903-rsp3-arp-dos-WmfzdvJZ vom 2025-05-07",
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"title": "Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers: Schwachstelle erm\u00f6glicht Denial of Service",
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"title": "CVE-2025-20189"
}
]
}
CVE-2025-20189 (GCVE-0-2025-20189)
Vulnerability from cvelistv5 – Published: 2025-05-07 17:35 – Updated: 2025-05-07 19:44
VLAI?
EPSS
Summary
A vulnerability in the Cisco Express Forwarding functionality of Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers with Route Switch Processor 3 (RSP3C) could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition.
This vulnerability is due to improper memory management when Cisco IOS XE Software is processing Address Resolution Protocol (ARP) messages. An attacker could exploit this vulnerability by sending crafted ARP messages at a high rate over a period of time to an affected device. A successful exploit could allow the attacker to exhaust system resources, which eventually triggers a reload of the active route switch processor (RSP). If a redundant RSP is not present, the router reloads.
Severity ?
7.4 (High)
CWE
- CWE-762 - Mismatched Memory Management Routines
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco IOS XE Software |
Affected:
3.16.0S
Affected: 3.16.1S Affected: 3.16.1aS Affected: 3.16.2S Affected: 3.16.2aS Affected: 3.16.0cS Affected: 3.16.3S Affected: 3.16.2bS Affected: 3.16.3aS Affected: 3.16.4S Affected: 3.16.4aS Affected: 3.16.4bS Affected: 3.16.5S Affected: 3.16.4dS Affected: 3.16.6S Affected: 3.16.7S Affected: 3.16.6bS Affected: 3.16.7aS Affected: 3.16.7bS Affected: 3.16.8S Affected: 3.16.9S Affected: 3.16.10S Affected: 3.17.0S Affected: 3.17.1S Affected: 3.17.2S Affected: 3.17.1aS Affected: 3.17.3S Affected: 3.17.4S Affected: 16.1.1 Affected: 16.1.2 Affected: 16.1.3 Affected: 16.2.1 Affected: 16.2.2 Affected: 16.3.1 Affected: 16.3.2 Affected: 16.3.3 Affected: 16.3.1a Affected: 16.3.4 Affected: 16.3.5 Affected: 16.3.5b Affected: 16.3.6 Affected: 16.3.7 Affected: 16.3.8 Affected: 16.3.9 Affected: 16.3.10 Affected: 16.3.11 Affected: 16.4.1 Affected: 16.4.2 Affected: 16.4.3 Affected: 16.5.1 Affected: 16.5.1a Affected: 16.5.1b Affected: 16.5.2 Affected: 16.5.3 Affected: 3.18.0aS Affected: 3.18.0S Affected: 3.18.1S Affected: 3.18.2S Affected: 3.18.3S Affected: 3.18.4S Affected: 3.18.0SP Affected: 3.18.1SP Affected: 3.18.1aSP Affected: 3.18.1bSP Affected: 3.18.1cSP Affected: 3.18.2SP Affected: 3.18.2aSP Affected: 3.18.3SP Affected: 3.18.4SP Affected: 3.18.3aSP Affected: 3.18.3bSP Affected: 3.18.5SP Affected: 3.18.6SP Affected: 3.18.7SP Affected: 3.18.8aSP Affected: 3.18.9SP Affected: 16.6.1 Affected: 16.6.2 Affected: 16.6.3 Affected: 16.6.4 Affected: 16.6.5 Affected: 16.6.4a Affected: 16.6.5a Affected: 16.6.6 Affected: 16.6.7 Affected: 16.6.8 Affected: 16.6.9 Affected: 16.6.10 Affected: 16.7.1 Affected: 16.7.1a Affected: 16.7.1b Affected: 16.7.2 Affected: 16.7.3 Affected: 16.7.4 Affected: 16.8.1 Affected: 16.8.1a Affected: 16.8.1b Affected: 16.8.1s Affected: 16.8.1c Affected: 16.8.1d Affected: 16.8.2 Affected: 16.8.1e Affected: 16.8.3 Affected: 16.9.1 Affected: 16.9.2 Affected: 16.9.1a Affected: 16.9.1b Affected: 16.9.1s Affected: 16.9.3 Affected: 16.9.4 Affected: 16.9.3a Affected: 16.9.5 Affected: 16.9.5f Affected: 16.9.6 Affected: 16.9.7 Affected: 16.9.8 Affected: 16.10.1 Affected: 16.10.1a Affected: 16.10.1b Affected: 16.10.1s Affected: 16.10.1c Affected: 16.10.1e Affected: 16.10.1d Affected: 16.10.2 Affected: 16.10.1f Affected: 16.10.1g Affected: 16.10.3 Affected: 16.11.1 Affected: 16.11.1a Affected: 16.11.1b 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: 16.12.1w Affected: 16.12.2 Affected: 16.12.1y Affected: 16.12.2a Affected: 16.12.3 Affected: 16.12.8 Affected: 16.12.2s Affected: 16.12.1x Affected: 16.12.1t Affected: 16.12.4 Affected: 16.12.3s Affected: 16.12.3a Affected: 16.12.4a Affected: 16.12.5 Affected: 16.12.6 Affected: 16.12.1z1 Affected: 16.12.5a Affected: 16.12.5b Affected: 16.12.1z2 Affected: 16.12.6a Affected: 16.12.7 Affected: 16.12.9 Affected: 16.12.10 Affected: 16.12.10a Affected: 16.12.11 Affected: 16.12.12 Affected: 16.12.13 Affected: 17.1.1 Affected: 17.1.1a Affected: 17.1.1s Affected: 17.1.1t Affected: 17.1.3 Affected: 17.2.1 Affected: 17.2.1r Affected: 17.2.1a 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: 17.3.1w Affected: 17.3.2a Affected: 17.3.1x Affected: 17.3.1z Affected: 17.3.4 Affected: 17.3.5 Affected: 17.3.4a Affected: 17.3.6 Affected: 17.3.4b Affected: 17.3.4c Affected: 17.3.5a Affected: 17.3.5b 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: 17.4.2a Affected: 17.5.1 Affected: 17.5.1a Affected: 17.6.1 Affected: 17.6.2 Affected: 17.6.1w Affected: 17.6.1a Affected: 17.6.1x Affected: 17.6.3 Affected: 17.6.1y Affected: 17.6.1z Affected: 17.6.3a Affected: 17.6.4 Affected: 17.6.1z1 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: 17.7.1b Affected: 17.7.2 Affected: 17.10.1 Affected: 17.10.1a Affected: 17.10.1b Affected: 17.8.1 Affected: 17.8.1a Affected: 17.9.1 Affected: 17.9.1w Affected: 17.9.2 Affected: 17.9.1a Affected: 17.9.1x Affected: 17.9.1y Affected: 17.9.3 Affected: 17.9.2a Affected: 17.9.1x1 Affected: 17.9.3a Affected: 17.9.4 Affected: 17.9.1y1 Affected: 17.9.5 Affected: 17.9.4a Affected: 17.9.5a Affected: 17.9.5b Affected: 17.9.6 Affected: 17.9.6a Affected: 17.9.5e Affected: 17.9.5f Affected: 17.11.1 Affected: 17.11.1a Affected: 17.12.1 Affected: 17.12.1w Affected: 17.12.1x Affected: 17.12.2 Affected: 17.12.3 Affected: 17.12.2a Affected: 17.12.1y Affected: 17.12.1z Affected: 17.12.4 Affected: 17.12.3a Affected: 17.12.1z1 Affected: 17.12.4a Affected: 17.12.4b Affected: 17.13.1 Affected: 17.13.1a Affected: 17.14.1 Affected: 17.14.1a |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-20189",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-07T18:56:04.440375Z",
"version": "2.0.3"
},
"type": "ssvc"
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],
"providerMetadata": {
"dateUpdated": "2025-05-07T19:44:12.723Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
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"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "3.16.0S"
},
{
"status": "affected",
"version": "3.16.1S"
},
{
"status": "affected",
"version": "3.16.1aS"
},
{
"status": "affected",
"version": "3.16.2S"
},
{
"status": "affected",
"version": "3.16.2aS"
},
{
"status": "affected",
"version": "3.16.0cS"
},
{
"status": "affected",
"version": "3.16.3S"
},
{
"status": "affected",
"version": "3.16.2bS"
},
{
"status": "affected",
"version": "3.16.3aS"
},
{
"status": "affected",
"version": "3.16.4S"
},
{
"status": "affected",
"version": "3.16.4aS"
},
{
"status": "affected",
"version": "3.16.4bS"
},
{
"status": "affected",
"version": "3.16.5S"
},
{
"status": "affected",
"version": "3.16.4dS"
},
{
"status": "affected",
"version": "3.16.6S"
},
{
"status": "affected",
"version": "3.16.7S"
},
{
"status": "affected",
"version": "3.16.6bS"
},
{
"status": "affected",
"version": "3.16.7aS"
},
{
"status": "affected",
"version": "3.16.7bS"
},
{
"status": "affected",
"version": "3.16.8S"
},
{
"status": "affected",
"version": "3.16.9S"
},
{
"status": "affected",
"version": "3.16.10S"
},
{
"status": "affected",
"version": "3.17.0S"
},
{
"status": "affected",
"version": "3.17.1S"
},
{
"status": "affected",
"version": "3.17.2S"
},
{
"status": "affected",
"version": "3.17.1aS"
},
{
"status": "affected",
"version": "3.17.3S"
},
{
"status": "affected",
"version": "3.17.4S"
},
{
"status": "affected",
"version": "16.1.1"
},
{
"status": "affected",
"version": "16.1.2"
},
{
"status": "affected",
"version": "16.1.3"
},
{
"status": "affected",
"version": "16.2.1"
},
{
"status": "affected",
"version": "16.2.2"
},
{
"status": "affected",
"version": "16.3.1"
},
{
"status": "affected",
"version": "16.3.2"
},
{
"status": "affected",
"version": "16.3.3"
},
{
"status": "affected",
"version": "16.3.1a"
},
{
"status": "affected",
"version": "16.3.4"
},
{
"status": "affected",
"version": "16.3.5"
},
{
"status": "affected",
"version": "16.3.5b"
},
{
"status": "affected",
"version": "16.3.6"
},
{
"status": "affected",
"version": "16.3.7"
},
{
"status": "affected",
"version": "16.3.8"
},
{
"status": "affected",
"version": "16.3.9"
},
{
"status": "affected",
"version": "16.3.10"
},
{
"status": "affected",
"version": "16.3.11"
},
{
"status": "affected",
"version": "16.4.1"
},
{
"status": "affected",
"version": "16.4.2"
},
{
"status": "affected",
"version": "16.4.3"
},
{
"status": "affected",
"version": "16.5.1"
},
{
"status": "affected",
"version": "16.5.1a"
},
{
"status": "affected",
"version": "16.5.1b"
},
{
"status": "affected",
"version": "16.5.2"
},
{
"status": "affected",
"version": "16.5.3"
},
{
"status": "affected",
"version": "3.18.0aS"
},
{
"status": "affected",
"version": "3.18.0S"
},
{
"status": "affected",
"version": "3.18.1S"
},
{
"status": "affected",
"version": "3.18.2S"
},
{
"status": "affected",
"version": "3.18.3S"
},
{
"status": "affected",
"version": "3.18.4S"
},
{
"status": "affected",
"version": "3.18.0SP"
},
{
"status": "affected",
"version": "3.18.1SP"
},
{
"status": "affected",
"version": "3.18.1aSP"
},
{
"status": "affected",
"version": "3.18.1bSP"
},
{
"status": "affected",
"version": "3.18.1cSP"
},
{
"status": "affected",
"version": "3.18.2SP"
},
{
"status": "affected",
"version": "3.18.2aSP"
},
{
"status": "affected",
"version": "3.18.3SP"
},
{
"status": "affected",
"version": "3.18.4SP"
},
{
"status": "affected",
"version": "3.18.3aSP"
},
{
"status": "affected",
"version": "3.18.3bSP"
},
{
"status": "affected",
"version": "3.18.5SP"
},
{
"status": "affected",
"version": "3.18.6SP"
},
{
"status": "affected",
"version": "3.18.7SP"
},
{
"status": "affected",
"version": "3.18.8aSP"
},
{
"status": "affected",
"version": "3.18.9SP"
},
{
"status": "affected",
"version": "16.6.1"
},
{
"status": "affected",
"version": "16.6.2"
},
{
"status": "affected",
"version": "16.6.3"
},
{
"status": "affected",
"version": "16.6.4"
},
{
"status": "affected",
"version": "16.6.5"
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{
"status": "affected",
"version": "16.6.4a"
},
{
"status": "affected",
"version": "16.6.5a"
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{
"status": "affected",
"version": "16.6.6"
},
{
"status": "affected",
"version": "16.6.7"
},
{
"status": "affected",
"version": "16.6.8"
},
{
"status": "affected",
"version": "16.6.9"
},
{
"status": "affected",
"version": "16.6.10"
},
{
"status": "affected",
"version": "16.7.1"
},
{
"status": "affected",
"version": "16.7.1a"
},
{
"status": "affected",
"version": "16.7.1b"
},
{
"status": "affected",
"version": "16.7.2"
},
{
"status": "affected",
"version": "16.7.3"
},
{
"status": "affected",
"version": "16.7.4"
},
{
"status": "affected",
"version": "16.8.1"
},
{
"status": "affected",
"version": "16.8.1a"
},
{
"status": "affected",
"version": "16.8.1b"
},
{
"status": "affected",
"version": "16.8.1s"
},
{
"status": "affected",
"version": "16.8.1c"
},
{
"status": "affected",
"version": "16.8.1d"
},
{
"status": "affected",
"version": "16.8.2"
},
{
"status": "affected",
"version": "16.8.1e"
},
{
"status": "affected",
"version": "16.8.3"
},
{
"status": "affected",
"version": "16.9.1"
},
{
"status": "affected",
"version": "16.9.2"
},
{
"status": "affected",
"version": "16.9.1a"
},
{
"status": "affected",
"version": "16.9.1b"
},
{
"status": "affected",
"version": "16.9.1s"
},
{
"status": "affected",
"version": "16.9.3"
},
{
"status": "affected",
"version": "16.9.4"
},
{
"status": "affected",
"version": "16.9.3a"
},
{
"status": "affected",
"version": "16.9.5"
},
{
"status": "affected",
"version": "16.9.5f"
},
{
"status": "affected",
"version": "16.9.6"
},
{
"status": "affected",
"version": "16.9.7"
},
{
"status": "affected",
"version": "16.9.8"
},
{
"status": "affected",
"version": "16.10.1"
},
{
"status": "affected",
"version": "16.10.1a"
},
{
"status": "affected",
"version": "16.10.1b"
},
{
"status": "affected",
"version": "16.10.1s"
},
{
"status": "affected",
"version": "16.10.1c"
},
{
"status": "affected",
"version": "16.10.1e"
},
{
"status": "affected",
"version": "16.10.1d"
},
{
"status": "affected",
"version": "16.10.2"
},
{
"status": "affected",
"version": "16.10.1f"
},
{
"status": "affected",
"version": "16.10.1g"
},
{
"status": "affected",
"version": "16.10.3"
},
{
"status": "affected",
"version": "16.11.1"
},
{
"status": "affected",
"version": "16.11.1a"
},
{
"status": "affected",
"version": "16.11.1b"
},
{
"status": "affected",
"version": "16.11.2"
},
{
"status": "affected",
"version": "16.11.1s"
},
{
"status": "affected",
"version": "16.12.1"
},
{
"status": "affected",
"version": "16.12.1s"
},
{
"status": "affected",
"version": "16.12.1a"
},
{
"status": "affected",
"version": "16.12.1c"
},
{
"status": "affected",
"version": "16.12.1w"
},
{
"status": "affected",
"version": "16.12.2"
},
{
"status": "affected",
"version": "16.12.1y"
},
{
"status": "affected",
"version": "16.12.2a"
},
{
"status": "affected",
"version": "16.12.3"
},
{
"status": "affected",
"version": "16.12.8"
},
{
"status": "affected",
"version": "16.12.2s"
},
{
"status": "affected",
"version": "16.12.1x"
},
{
"status": "affected",
"version": "16.12.1t"
},
{
"status": "affected",
"version": "16.12.4"
},
{
"status": "affected",
"version": "16.12.3s"
},
{
"status": "affected",
"version": "16.12.3a"
},
{
"status": "affected",
"version": "16.12.4a"
},
{
"status": "affected",
"version": "16.12.5"
},
{
"status": "affected",
"version": "16.12.6"
},
{
"status": "affected",
"version": "16.12.1z1"
},
{
"status": "affected",
"version": "16.12.5a"
},
{
"status": "affected",
"version": "16.12.5b"
},
{
"status": "affected",
"version": "16.12.1z2"
},
{
"status": "affected",
"version": "16.12.6a"
},
{
"status": "affected",
"version": "16.12.7"
},
{
"status": "affected",
"version": "16.12.9"
},
{
"status": "affected",
"version": "16.12.10"
},
{
"status": "affected",
"version": "16.12.10a"
},
{
"status": "affected",
"version": "16.12.11"
},
{
"status": "affected",
"version": "16.12.12"
},
{
"status": "affected",
"version": "16.12.13"
},
{
"status": "affected",
"version": "17.1.1"
},
{
"status": "affected",
"version": "17.1.1a"
},
{
"status": "affected",
"version": "17.1.1s"
},
{
"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",
"version": "17.3.1"
},
{
"status": "affected",
"version": "17.3.2"
},
{
"status": "affected",
"version": "17.3.3"
},
{
"status": "affected",
"version": "17.3.1a"
},
{
"status": "affected",
"version": "17.3.1w"
},
{
"status": "affected",
"version": "17.3.2a"
},
{
"status": "affected",
"version": "17.3.1x"
},
{
"status": "affected",
"version": "17.3.1z"
},
{
"status": "affected",
"version": "17.3.4"
},
{
"status": "affected",
"version": "17.3.5"
},
{
"status": "affected",
"version": "17.3.4a"
},
{
"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",
"version": "17.4.1"
},
{
"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",
"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": "17.6.1w"
},
{
"status": "affected",
"version": "17.6.1a"
},
{
"status": "affected",
"version": "17.6.1x"
},
{
"status": "affected",
"version": "17.6.3"
},
{
"status": "affected",
"version": "17.6.1y"
},
{
"status": "affected",
"version": "17.6.1z"
},
{
"status": "affected",
"version": "17.6.3a"
},
{
"status": "affected",
"version": "17.6.4"
},
{
"status": "affected",
"version": "17.6.1z1"
},
{
"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": "17.7.1b"
},
{
"status": "affected",
"version": "17.7.2"
},
{
"status": "affected",
"version": "17.10.1"
},
{
"status": "affected",
"version": "17.10.1a"
},
{
"status": "affected",
"version": "17.10.1b"
},
{
"status": "affected",
"version": "17.8.1"
},
{
"status": "affected",
"version": "17.8.1a"
},
{
"status": "affected",
"version": "17.9.1"
},
{
"status": "affected",
"version": "17.9.1w"
},
{
"status": "affected",
"version": "17.9.2"
},
{
"status": "affected",
"version": "17.9.1a"
},
{
"status": "affected",
"version": "17.9.1x"
},
{
"status": "affected",
"version": "17.9.1y"
},
{
"status": "affected",
"version": "17.9.3"
},
{
"status": "affected",
"version": "17.9.2a"
},
{
"status": "affected",
"version": "17.9.1x1"
},
{
"status": "affected",
"version": "17.9.3a"
},
{
"status": "affected",
"version": "17.9.4"
},
{
"status": "affected",
"version": "17.9.1y1"
},
{
"status": "affected",
"version": "17.9.5"
},
{
"status": "affected",
"version": "17.9.4a"
},
{
"status": "affected",
"version": "17.9.5a"
},
{
"status": "affected",
"version": "17.9.5b"
},
{
"status": "affected",
"version": "17.9.6"
},
{
"status": "affected",
"version": "17.9.6a"
},
{
"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"
},
{
"status": "affected",
"version": "17.12.1w"
},
{
"status": "affected",
"version": "17.12.1x"
},
{
"status": "affected",
"version": "17.12.2"
},
{
"status": "affected",
"version": "17.12.3"
},
{
"status": "affected",
"version": "17.12.2a"
},
{
"status": "affected",
"version": "17.12.1y"
},
{
"status": "affected",
"version": "17.12.1z"
},
{
"status": "affected",
"version": "17.12.4"
},
{
"status": "affected",
"version": "17.12.3a"
},
{
"status": "affected",
"version": "17.12.1z1"
},
{
"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"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Cisco Express Forwarding functionality of Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers with Route Switch Processor 3 (RSP3C) could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper memory management when Cisco IOS XE Software is processing Address Resolution Protocol (ARP) messages. An attacker could exploit this vulnerability by sending crafted ARP messages at a high rate over a period of time to an affected device. A successful exploit could allow the attacker to exhaust system resources, which eventually triggers a reload of the active route switch processor (RSP). If a redundant RSP is not present, the router reloads."
}
],
"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-762",
"description": "Mismatched Memory Management Routines",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-07T17:35:47.923Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-asr903-rsp3-arp-dos-WmfzdvJZ",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr903-rsp3-arp-dos-WmfzdvJZ"
}
],
"source": {
"advisory": "cisco-sa-asr903-rsp3-arp-dos-WmfzdvJZ",
"defects": [
"CSCwh55442"
],
"discovery": "EXTERNAL"
}
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2025-20189",
"datePublished": "2025-05-07T17:35:47.923Z",
"dateReserved": "2024-10-10T19:15:13.226Z",
"dateUpdated": "2025-05-07T19:44:12.723Z",
"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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