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Multiple Cisco Products Switch Integrated Security Features DHCPv6 Denial of Service Vulnerability

cisco-sa-sisf-dos-ZGwt4DdY · High · Published · Updated

A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sisf-dos-ZGwt4DdY This advisory is part of the May 2025 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: May 2025 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2025-20191
Cisco Bug IDsCSCvq14413, CSCvo13585, CSCwk04230, CSCwj88828, CSCwk02672, CSCwk02785
CVSS ScoreBase 7.4
Base 7.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco IOS 15.2(6)E, Cisco IOS 15.2(6)E0a, Cisco IOS 15.2(6)E1, Cisco IOS 15.2(6)E0c, Cisco IOS 15.2(6)E2, Cisco IOS 15.2(6)E1a, Cisco IOS 15.2(6)E1s, Cisco IOS 15.2(7)E, Cisco IOS 15.2(6)E2a, Cisco IOS 15.2(6)E2b, Cisco IOS 15.2(7)E1, Cisco IOS 15.2(7)E0a, Cisco IOS 15.2(7)E0b, Cisco IOS 15.2(7)E0s, Cisco IOS 15.2(6)E3, Cisco IOS 15.2(7)E2, Cisco IOS 15.2(7a)E0b, Cisco IOS 15.2(7)E3, Cisco IOS 15.2(7)E1a, Cisco IOS 15.2(7b)E0b, Cisco IOS 15.2(7)E2a, Cisco IOS 15.2(7)E4, Cisco IOS 15.2(7)E2b, Cisco IOS 15.2(7)E3k, Cisco IOS 15.2(8)E, Cisco IOS 15.2(8)E1, Cisco IOS 15.2(7)E5, Cisco IOS 15.2(7)E6, Cisco IOS 15.2(8)E2, Cisco IOS 15.2(7)E7, Cisco IOS 15.2(8)E3, Cisco IOS 15.2(7)E8, Cisco IOS 15.2(8)E4, Cisco IOS 15.2(7)E9, Cisco IOS 15.2(8)E5, Cisco IOS 15.2(8)E6, Cisco IOS 15.2(7)E10, Cisco IOS 15.2(7)E11, Cisco IOS 15.2(8)E7, Cisco IOS 15.2(6)EB, Cisco IOS 15.5(1)SY1, Cisco IOS 15.5(1)SY2, Cisco IOS 15.5(1)SY3, Cisco IOS 15.5(1)SY4, Cisco IOS 15.5(1)SY5, Cisco IOS 15.5(1)SY6, Cisco IOS 15.5(1)SY7, Cisco IOS 15.5(1)SY8, Cisco IOS 15.5(1)SY9, Cisco IOS 15.5(1)SY10, Cisco IOS 15.5(1)SY11, Cisco IOS 15.5(1)SY12, Cisco IOS 15.5(1)SY13, Cisco IOS 15.5(1)SY14, Cisco IOS 12.2(6)I1, Cisco IOS 15.1(3)SVR1, Cisco IOS 15.1(3)SVR2, Cisco IOS 15.1(3)SVR3, Cisco IOS 15.1(3)SVR10, Cisco IOS 15.1(3)SVS, Cisco IOS 15.1(3)SVS1, Cisco IOS 15.1(3)SVT1, Cisco IOS 15.1(3)SVT2, Cisco IOS 15.1(3)SVT3, Cisco IOS 15.1(3)SVT4, Cisco IOS 15.1(3)SVU1, Cisco IOS 15.1(3)SVU10, Cisco IOS 15.1(3)SVU2, Cisco IOS 15.1(3)SVU11, Cisco IOS 15.1(3)SVU20, Cisco IOS 15.1(3)SVU21, Cisco IOS 15.1(3)SVV1, Cisco IOS 15.1(3)SVV2, Cisco IOS 15.1(3)SVV3, Cisco IOS 15.1(3)SVV4, Cisco IOS 15.1(3)SVW, Cisco IOS 15.1(3)SVW1, Cisco IOS 15.1(3)SVX, Cisco IOS 15.1(3)SVX1, Cisco Wireless LAN Controller (WLC) 8.3.102.0, Cisco Wireless LAN Controller (WLC) 8.3.111.0, Cisco Wireless LAN Controller (WLC) 8.3.112.0, Cisco Wireless LAN Controller (WLC) 8.3.121.0, Cisco Wireless LAN Controller (WLC) 8.3.122.0, Cisco Wireless LAN Controller (WLC) 8.3.130.0, Cisco Wireless LAN Controller (WLC) 8.3.131.0, Cisco Wireless LAN Controller (WLC) 8.3.132.0, Cisco Wireless LAN Controller (WLC) 8.3.133.0, Cisco Wireless LAN Controller (WLC) 8.3.140.0, Cisco Wireless LAN Controller (WLC) 8.3.141.0, Cisco Wireless LAN Controller (WLC) 8.3.143.0, Cisco Wireless LAN Controller (WLC) 8.3.150.0, Cisco Wireless LAN Controller (WLC) 8.3.108.0, Cisco Wireless LAN Controller (WLC) 8.3.135.0, Cisco Wireless LAN Controller (WLC) 8.2.121.0, Cisco Wireless LAN Controller (WLC) 8.2.130.0, Cisco Wireless LAN Controller (WLC) 8.2.100.0, Cisco Wireless LAN Controller (WLC) 8.2.110.0, Cisco Wireless LAN Controller (WLC) 8.2.111.0, Cisco Wireless LAN Controller (WLC) 8.2.141.0, Cisco Wireless LAN Controller (WLC) 8.2.151.0, Cisco Wireless LAN Controller (WLC) 8.2.160.0, Cisco Wireless LAN Controller (WLC) 8.2.161.0, Cisco Wireless LAN Controller (WLC) 8.2.164.0, Cisco Wireless LAN Controller (WLC) 8.2.166.0, Cisco Wireless LAN Controller (WLC) 8.2.170.0, Cisco Wireless LAN Controller (WLC) 8.5.103.0, Cisco Wireless LAN Controller (WLC) 8.5.105.0, Cisco Wireless LAN Controller (WLC) 8.5.110.0, Cisco Wireless LAN Controller (WLC) 8.5.120.0, Cisco Wireless LAN Controller (WLC) 8.5.131.0, Cisco Wireless LAN Controller (WLC) 8.5.135.0, Cisco Wireless LAN Controller (WLC) 8.5.140.0, Cisco Wireless LAN Controller (WLC) 8.5.151.0, Cisco Wireless LAN Controller (WLC) 8.5.160.0, Cisco Wireless LAN Controller (WLC) 8.5.161.0, Cisco Wireless LAN Controller (WLC) 8.5.108.0, Cisco Wireless LAN Controller (WLC) 8.5.109.0, Cisco Wireless LAN Controller (WLC) 8.5.141.105, Cisco Wireless LAN Controller (WLC) 8.5.182.0, Cisco Wireless LAN Controller (WLC) 8.5.171.0, Cisco Wireless LAN Controller (WLC) 8.5.182.105, Cisco Wireless LAN Controller (WLC) 8.5.182.106, Cisco Wireless LAN Controller (WLC) 8.5.182.107, Cisco Wireless LAN Controller (WLC) 8.5.182.7, Cisco Wireless LAN Controller (WLC) 8.5.182.11, Cisco Wireless LAN Controller (WLC) 8.5.182.108, Cisco Wireless LAN Controller (WLC) 8.5.182.12, Cisco Wireless LAN Controller (WLC) 8.4.100.0, Cisco Wireless LAN Controller (WLC) 8.6.101.0, Cisco Wireless LAN Controller (WLC) 8.7.102.0, Cisco Wireless LAN Controller (WLC) 8.7.106.0, Cisco Wireless LAN Controller (WLC) 8.8.100.0, Cisco Wireless LAN Controller (WLC) 8.8.111.0, Cisco Wireless LAN Controller (WLC) 8.8.120.0, Cisco Wireless LAN Controller (WLC) 8.8.125.0, Cisco Wireless LAN Controller (WLC) 8.8.130.0, Cisco Wireless LAN Controller (WLC) 8.9.100.0, Cisco Wireless LAN Controller (WLC) 8.9.111.0, Cisco Wireless LAN Controller (WLC) 8.10.105.0, Cisco Wireless LAN Controller (WLC) 8.10.112.0, Cisco Wireless LAN Controller (WLC) 8.10.113.0, Cisco Wireless LAN Controller (WLC) 8.10.120.0, Cisco Wireless LAN Controller (WLC) 8.10.121.0, Cisco Wireless LAN Controller (WLC) 8.10.122.0, Cisco Wireless LAN Controller (WLC) 8.10.130.0, Cisco Wireless LAN Controller (WLC) 8.10.162.0, Cisco Wireless LAN Controller (WLC) 8.10.141.0, Cisco Wireless LAN Controller (WLC) 8.10.151.0, Cisco Wireless LAN Controller (WLC) 8.10.150.0, Cisco Wireless LAN Controller (WLC) 8.10.142.0, Cisco Wireless LAN Controller (WLC) 8.10.171.0, Cisco Wireless LAN Controller (WLC) 8.10.170.0, Cisco Wireless LAN Controller (WLC) 8.10.181.0, Cisco Wireless LAN Controller (WLC) 8.10.182.0, Cisco Wireless LAN Controller (WLC) 8.10.183.0, Cisco Wireless LAN Controller (WLC) 8.10.185.0, Cisco Wireless LAN Controller (WLC) 8.10.190.0, Cisco NX-OS Software 7.0(3)I7(1), Cisco NX-OS Software 7.0(3)I7(2), Cisco NX-OS Software 7.0(3)I7(3), Cisco NX-OS Software 7.0(3)I7(4), Cisco NX-OS Software 7.0(3)I7(5), Cisco NX-OS Software 7.0(3)I7(5a), Cisco NX-OS Software 7.0(3)I7(3z), Cisco NX-OS Software 7.0(3)I7(6), Cisco NX-OS Software 7.0(3)I7(6z), Cisco NX-OS Software 7.0(3)I7(7), Cisco NX-OS Software 7.0(3)I7(8), Cisco NX-OS Software 7.0(3)I7(9), Cisco NX-OS Software 7.0(3)I7(9w), Cisco NX-OS Software 7.0(3)I7(10), Cisco NX-OS Software 7.3(0)D1(1), Cisco NX-OS Software 7.3(0)DX(1), Cisco NX-OS Software 7.3(1)D1(1), Cisco NX-OS Software 7.3(2)D1(1), Cisco NX-OS Software 7.3(2)D1(2), Cisco NX-OS Software 7.3(2)D1(3), Cisco NX-OS Software 7.3(2)D1(3a), Cisco NX-OS Software 7.3(2)D1(1d), Cisco NX-OS Software 8.1(1), Cisco NX-OS Software 8.1(2), Cisco NX-OS Software 8.1(2a), Cisco NX-OS Software 8.2(1), Cisco NX-OS Software 8.2(2), Cisco NX-OS Software 8.2(3), Cisco NX-OS Software 8.2(4), Cisco NX-OS Software 8.2(5), Cisco NX-OS Software 8.2(6), Cisco NX-OS Software 8.2(7), Cisco NX-OS Software 8.2(7a), Cisco NX-OS Software 8.2(8), Cisco NX-OS Software 8.2(9), Cisco NX-OS Software 8.2(10), Cisco NX-OS Software 8.2(11), Cisco NX-OS Software 8.3(1), Cisco NX-OS Software 8.3(2), Cisco NX-OS Software 9.2(1), Cisco NX-OS Software 9.2(2), Cisco NX-OS Software 9.2(2t), Cisco NX-OS Software 9.2(3), Cisco NX-OS Software 9.2(3y), Cisco NX-OS Software 9.2(4), Cisco NX-OS Software 9.2(2v), Cisco NX-OS Software 7.3(3)D1(1), Cisco NX-OS Software 7.0(3)IA7(1), Cisco NX-OS Software 7.0(3)IA7(2), Cisco NX-OS Software 7.0(3)IM7(2), Cisco NX-OS Software 7.3(4)D1(1), Cisco NX-OS Software 8.4(1), Cisco NX-OS Software 8.4(2), Cisco NX-OS Software 8.4(3), Cisco NX-OS Software 8.4(4), Cisco NX-OS Software 8.4(4a), Cisco NX-OS Software 8.4(5), Cisco NX-OS Software 8.4(6), Cisco NX-OS Software 8.4(6a), Cisco NX-OS Software 8.4(7), Cisco NX-OS Software 8.4(8), Cisco NX-OS Software 8.4(9), Cisco NX-OS Software 9.3(1), Cisco NX-OS Software 9.3(2), Cisco NX-OS Software 9.3(3), Cisco NX-OS Software 9.3(1z), Cisco NX-OS Software 9.3(4), Cisco NX-OS Software 9.3(5), Cisco NX-OS Software 9.3(6), Cisco NX-OS Software 9.3(5w), Cisco NX-OS Software 9.3(7), Cisco NX-OS Software 9.3(7k), Cisco NX-OS Software 9.3(7a), Cisco NX-OS Software 9.3(8), Cisco NX-OS Software 9.3(9), Cisco NX-OS Software 9.3(10), Cisco NX-OS Software 9.3(11), Cisco NX-OS Software 9.3(12), Cisco NX-OS Software 9.3(13), Cisco NX-OS Software 9.3(14), Cisco NX-OS Software 7.3(5)D1(1), Cisco NX-OS Software 7.3(6)D1(1), Cisco NX-OS Software 7.3(7)D1(1), Cisco NX-OS Software 10.1(1), Cisco NX-OS Software 10.1(2), Cisco NX-OS Software 10.1(2t), Cisco NX-OS Software 7.3(8)D1(1), Cisco NX-OS Software 10.2(1), Cisco NX-OS Software 10.2(1q), Cisco NX-OS Software 10.2(2), Cisco NX-OS Software 10.2(3), Cisco NX-OS Software 10.2(2a), Cisco NX-OS Software 10.2(3t), Cisco NX-OS Software 10.2(4), Cisco NX-OS Software 10.2(5), Cisco NX-OS Software 10.2(3v), Cisco NX-OS Software 10.2(6), Cisco NX-OS Software 10.2(7), Cisco NX-OS Software 10.2(8), Cisco NX-OS Software 7.3(9)D1(1), Cisco NX-OS Software 10.3(1), Cisco NX-OS Software 10.3(2), Cisco NX-OS Software 10.3(3), Cisco NX-OS Software 10.3(99w), Cisco NX-OS Software 10.3(3w), Cisco NX-OS Software 10.3(99x), Cisco NX-OS Software 10.3(3o), Cisco NX-OS Software 10.3(4a), Cisco NX-OS Software 10.3(3p), Cisco NX-OS Software 10.3(4), Cisco NX-OS Software 10.3(3q), Cisco NX-OS Software 10.3(3x), Cisco NX-OS Software 10.3(5), Cisco NX-OS Software 10.3(4g), Cisco NX-OS Software 10.3(3r), Cisco NX-OS Software 10.3(4h), Cisco NX-OS Software 10.4(1), Cisco NX-OS Software 10.4(2), Cisco NX-OS Software 10.4(3), Cisco IOS XE Software 16.4.1, Cisco IOS XE Software 16.4.2, Cisco IOS XE Software 16.4.3, Cisco IOS XE Software 16.5.1, Cisco IOS XE Software 16.5.1a, Cisco IOS XE Software 16.5.1b, Cisco IOS XE Software 16.5.2, Cisco IOS XE Software 16.5.3, Cisco IOS XE Software 16.6.1, Cisco IOS XE Software 16.6.2, Cisco IOS XE Software 16.6.3, Cisco IOS XE Software 16.6.4, Cisco IOS XE Software 16.6.5, Cisco IOS XE Software 16.6.4s, Cisco IOS XE Software 16.6.4a, Cisco IOS XE Software 16.6.5a, Cisco IOS XE Software 16.6.6, Cisco IOS XE Software 16.6.5b, Cisco IOS XE Software 16.6.7, Cisco IOS XE Software 16.6.7a, Cisco IOS XE Software 16.6.8, Cisco IOS XE Software 16.6.9, Cisco IOS XE Software 16.6.10, Cisco IOS XE Software 16.7.1, Cisco IOS XE Software 16.7.1a, Cisco IOS XE Software 16.7.1b, Cisco IOS XE Software 16.7.2, Cisco IOS XE Software 16.7.3, Cisco IOS XE Software 16.7.4, Cisco IOS XE Software 16.8.1, Cisco IOS XE Software 16.8.1a, Cisco IOS XE Software 16.8.1b, Cisco IOS XE Software 16.8.1s, Cisco IOS XE Software 16.8.1c, Cisco IOS XE Software 16.8.1d, Cisco IOS XE Software 16.8.2, Cisco IOS XE Software 16.8.1e, Cisco IOS XE Software 16.8.3, Cisco IOS XE Software 16.9.1, Cisco IOS XE Software 16.9.2, Cisco IOS XE Software 16.9.1a, Cisco IOS XE Software 16.9.1b, Cisco IOS XE Software 16.9.1s, Cisco IOS XE Software 16.9.1c, Cisco IOS XE Software 16.9.1d, Cisco IOS XE Software 16.9.3, Cisco IOS XE Software 16.9.2a, Cisco IOS XE Software 16.9.2s, Cisco IOS XE Software 16.9.3h, Cisco IOS XE Software 16.9.4, Cisco IOS XE Software 16.9.3s, Cisco IOS XE Software 16.9.3a, Cisco IOS XE Software 16.9.4c, Cisco IOS XE Software 16.9.5, Cisco IOS XE Software 16.9.5f, Cisco IOS XE Software 16.9.6, Cisco IOS XE Software 16.9.7, Cisco IOS XE Software 16.9.8, Cisco IOS XE Software 16.9.8a, Cisco IOS XE Software 16.9.8b, Cisco IOS XE Software 16.10.1, Cisco IOS XE Software 16.10.1a, Cisco IOS XE Software 16.10.1b, Cisco IOS XE Software 16.10.1s, Cisco IOS XE Software 16.10.1c, Cisco IOS XE Software 16.10.1e, Cisco IOS XE Software 16.10.1d, Cisco IOS XE Software 16.10.2, Cisco IOS XE Software 16.10.1f, Cisco IOS XE Software 16.10.1g, Cisco IOS XE Software 16.10.3, Cisco IOS XE Software 3.10.0E, Cisco IOS XE Software 3.10.1E, Cisco IOS XE Software 3.10.0cE, Cisco IOS XE Software 3.10.2E, Cisco IOS XE Software 3.10.1aE, Cisco IOS XE Software 3.10.1sE, Cisco IOS XE Software 3.10.3E, Cisco IOS XE Software 16.11.1, Cisco IOS XE Software 16.11.1a, Cisco IOS XE Software 16.11.1b, Cisco IOS XE Software 16.11.2, Cisco IOS XE Software 16.11.1s, Cisco IOS XE Software 16.11.1c, Cisco IOS XE Software 16.12.1, Cisco IOS XE Software 16.12.1s, Cisco IOS XE Software 16.12.1a, Cisco IOS XE Software 16.12.1c, Cisco IOS XE Software 16.12.1w, Cisco IOS XE Software 16.12.1y, Cisco IOS XE Software 16.12.1x, Cisco IOS XE Software 16.12.1t, Cisco IOS XE Software 16.12.1z, Cisco IOS XE Software 16.12.1z1, Cisco IOS XE Software 16.12.1z2, Cisco IOS XE Software 3.11.0E, Cisco IOS XE Software 3.11.1E, Cisco IOS XE Software 3.11.2E, Cisco IOS XE Software 3.11.3E, Cisco IOS XE Software 3.11.1aE, Cisco IOS XE Software 3.11.2aE, Cisco IOS XE Software 3.11.4E, Cisco IOS XE Software 3.11.3aE, Cisco IOS XE Software 3.11.5E, Cisco IOS XE Software 3.11.6E, Cisco IOS XE Software 3.11.7E, Cisco IOS XE Software 3.11.8E, Cisco IOS XE Software 3.11.9E, Cisco IOS XE Software 3.11.10E, Cisco IOS XE Software 3.11.11E, Cisco IOS XE Software 17.11.99SW, Cisco IOS, Cisco IOS XE Software, Cisco NX-OS Software, Cisco Wireless LAN Controller (WLC)

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