cve-2025-20144
Vulnerability from cvelistv5
Published
2025-03-12 16:12
Modified
2025-03-21 20:33
Severity ?
EPSS score ?
Summary
Cisco IOS XR Software Access Control List Bypass Vulnerability
References
Impacted products
| ▼ | Vendor | Product |
|---|---|---|
| Cisco | Cisco IOS XR Software |
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"id": "CVE-2025-20144",
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"Technical Impact": "partial"
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"role": "CISA Coordinator",
"timestamp": "2025-03-21T20:33:04.758400Z",
"version": "2.0.3"
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"title": "CISA ADP Vulnrichment"
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"version": "6.5.3"
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"status": "affected",
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"status": "affected",
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"descriptions": [
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"lang": "en",
"value": "A vulnerability in the hybrid access control list (ACL) processing of IPv4 packets in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL.\r\n\r\nThis vulnerability is due to incorrect handling of packets when a specific configuration of the hybrid ACL exists. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass a configured ACL on the affected device.\r\nFor more information, see the section of this advisory.\r\nCisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability."
}
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"exploits": [
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"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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"metrics": [
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
"version": "3.1"
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"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
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"references": [
{
"name": "cisco-sa-ncs-hybridacl-crMZFfKQ",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs-hybridacl-crMZFfKQ"
},
{
"name": "Crafting endless AS-PATHS in BGP",
"url": "https://blog.apnic.net/2024/09/02/crafting-endless-as-paths-in-bgp/"
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"source": {
"advisory": "cisco-sa-ncs-hybridacl-crMZFfKQ",
"defects": [
"CSCwi49569"
],
"discovery": "INTERNAL"
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"title": "Cisco IOS XR Software Access Control List Bypass Vulnerability"
}
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"cveId": "CVE-2025-20144",
"datePublished": "2025-03-12T16:12:39.882Z",
"dateReserved": "2024-10-10T19:15:13.215Z",
"dateUpdated": "2025-03-21T20:33:28.254Z",
"state": "PUBLISHED"
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"meta": {
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}
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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.