This vulnerability is due to the incorrect handling of specific Ethernet frames that are received on line cards that have the Layer 2 services feature enabled. An attacker could exploit this vulnerability by sending specific Ethernet frames through an affected device. A successful exploit could allow the attacker to cause the ingress interface network processor to reset, resulting in a loss of traffic over the interfaces that are supported by the network processor. Multiple resets of the network processor would cause the line card to reset, resulting in a DoS condition.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Cisco | Cisco IOS XR Software | affected |
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| Vendor | Product | Confidence | Versions |
|---|---|---|---|
| Cisco | Ios Xr Software | — | — |
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No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
 EUVD |
EUVD-2024-18033 | A vulnerability in the Layer 2 Ethernet services of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the line card network processor to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of specific Ethernet frames that are received on line cards that have the Layer 2 services feature enabled. An attacker could exploit this vulnerability by sending specific Ethernet frames through an affected device. A successful exploit could allow the attacker to cause the ingress interface network processor to reset, resulting in a loss of traffic over the interfaces that are supported by the network processor. Multiple resets of the network processor would cause the line card to reset, resulting in a DoS condition. |
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-08-01T21:59:41.382Z
Reserved: 2023-11-08T15:08:07.632Z
Link: CVE-2024-20318
Vulnrichment
Updated: 2024-08-01T21:59:41.382Z
NVD
Status : Deferred
Published: 2024-03-13T17:15:47.813
Modified: 2026-04-15T00:35:42.020
Link: CVE-2024-20318
Redhat
No data.
OpenCVE Enrichment
Updated: 2025-07-13T11:31:38Z