CVE-2025-20159
published 2025-09-10CVE-2025-20159: A vulnerability in the management interface access control list (ACL) processing feature in Cisco IOS XR Software could allow an unauthenticated, remote…
PriorityP433medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.29%
21.6th percentile
A vulnerability in the management interface access control list (ACL) processing feature in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass configured ACLs for the SSH, NetConf, and gRPC features.
This vulnerability exists because management interface ACLs have not been supported on Cisco IOS XR Software Packet I/O infrastructure platforms for Linux-handled features such as SSH, NetConf, or gRPC. An attacker could exploit this vulnerability by attempting to send traffic to an affected device. A successful exploit could allow the attacker to bypass an ingress ACL that is applied on the management interface of the affected device.
Affected
75 ranges· showing 25
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CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
vendor_cisco5.3MEDIUM
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Cisco
Cisco IOS XR Software Management Interface ACL Bypass Vulnerability
vendor_cisco·2025-09-10·CVSS 5.3
CVE-2025-20159 [MEDIUM] CWE-284 Cisco IOS XR Software Management Interface ACL Bypass Vulnerability
Cisco IOS XR Software Management Interface ACL Bypass Vulnerability
A vulnerability in the management interface access control list (ACL) processing feature in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass configured ACLs for the SSH, NetConf, and gRPC features.
This vulnerability exists because management interface ACLs have not been supported on Cisco IOS XR Software Packet I/O infrastructure platforms for Linux-handled features such as SSH, NetConf, or gRPC. An attacker could exploit this vulnerability by attempting to send traffic to an affected device. A successful exploit could allow the attacker to bypass an ingress ACL that is applied on the management interface of the affected device.
For more information about this vulnerability, see the Detai
Cisco
Cisco IOS XR Software Management Interface ACL Bypass Vulnerability
vendor_cisco·CVSS 3.1
CVE-2025-20159 Cisco IOS XR Software Management Interface ACL Bypass Vulnerability
CVE-2025-20159: Cisco IOS XR Software Management Interface ACL Bypass Vulnerability
A vulnerability in the management interface access control list (ACL) processing feature in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass configured ACLs for the SSH, NetConf, and gRPC features. This vulnerability exists because management interface ACLs have not been supported on Cisco IOS XR Software Packet I/O infrastructure platforms for Linux-handled features such as SSH, NetConf, or gRPC. An attacker could exploit this vulnerability by attempting to send traffic to an affected device. A successful exploit could allow the attacker to bypass an ingress ACL that is applied on the management interface of the affected device. For more information about this vulnerability,
GHSA
GHSA-6rcj-394r-r32c: A vulnerability in the management interface access control list (ACL) processing feature in Cisco IOS XR Software could allow an unauthenticated, remo
ghsa_unreviewed·2025-09-10
CVE-2025-20159 [MEDIUM] CWE-284 GHSA-6rcj-394r-r32c: A vulnerability in the management interface access control list (ACL) processing feature in Cisco IOS XR Software could allow an unauthenticated, remo
A vulnerability in the management interface access control list (ACL) processing feature in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass configured ACLs for the SSH, NetConf, and gRPC features.
This vulnerability exists because management interface ACLs have not been supported on Cisco IOS XR Software Packet I/O infrastructure platforms for Linux-handled features such as SSH, NetConf, or gRPC. An attacker could exploit this vulnerability by attempting to send traffic to an affected device. A successful exploit could allow the attacker to bypass an ingress ACL that is applied on the management interface of the affected device.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-09-10
Published