CVE-2025-20144
published 2025-03-12CVE-2025-20144: 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…
PriorityP335medium5.8CVSS 3.1
AVNACLPRNUINSCCNILAN
EPSS
0.32%
24.2th percentile
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.
This 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.
For more information, see the section of this advisory.
Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.
Affected
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CVSS provenance
nvdv3.15.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
vendor_cisco4.0MEDIUM
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Cisco
Cisco IOS XR Software Hybrid Access Control List Bypass Vulnerability
vendor_cisco·2025-03-12·CVSS 4.0
CVE-2025-20144 [MEDIUM] CWE-284 Cisco IOS XR Software Hybrid Access Control List Bypass Vulnerability
Cisco IOS XR Software Hybrid Access Control List Bypass Vulnerability
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.
This 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.
For more information, see the Details section of this advisory.
Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.
This advisory is available at the follow
Cisco
Cisco IOS XR Software Hybrid Access Control List Bypass Vulnerability
vendor_cisco·CVSS 3.1
CVE-2025-20144 Cisco IOS XR Software Hybrid Access Control List Bypass Vulnerability
CVE-2025-20144: Cisco IOS XR Software Hybrid Access Control List Bypass Vulnerability
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. This 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. For more information, see the
CVSS: 3.1
CWE: CWE-284, CWE-284
Bug IDs: CSCwi49569, CSCwi49569, CSCwi49569
GHSA
GHSA-82g5-9hm8-rvm3: A vulnerability in the hybrid access control list (ACL) processing of IPv4 packets in Cisco IOS XR Software could allow an unauthenticated, remote att
ghsa_unreviewed·2025-03-12
CVE-2025-20144 [MEDIUM] CWE-284 GHSA-82g5-9hm8-rvm3: A vulnerability in the hybrid access control list (ACL) processing of IPv4 packets in Cisco IOS XR Software could allow an unauthenticated, remote att
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.
This 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.
For more information, see the section of this advisory.
Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-03-12
Published