CVE-2025-20146

CWE-20 — Improper Input Validation4 documents4 sources
Severity
8.6HIGH
EPSS
0.4%
top 36.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Cisco IOS XR SoftwareCisco IOS XR
Timeline
PublishedMar 12

Description

A vulnerability in the Layer 3 multicast feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed IPv4 multicast packets that are received on line cards where the interface has either …

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0

Affected Packages2 packages

▶CVEListV5cisco/cisco_ios_xr_software11 versions+10
▶NVDcisco/ios_xr11 versions+10

🔴Vulnerability Details

2
GHSA
GHSA-f6jg-88p5-x574: A vulnerability in the Layer 3 multicast feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact Hig↗2025-03-12
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CVEList
Cisco IOS XR Software for ASR 9000 Series Routers Layer 3 Multicast Routing Denial of Service Vulnerability↗2025-03-12
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📋Vendor Advisories

1
Cisco
Cisco IOS XR Software for ASR 9000 Series Routers Layer 3 Multicast Denial of Service Vulnerability↗2025-03-12
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