PT-2025-20254 · Cisco · Cisco Ios Xe

Published 2025-05-07 · Updated 2025-07-11 · CVE-2025-20162

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Software (affected versions not specified)

Description A vulnerability in the DHCP snooping security feature could allow an unauthenticated, remote attacker to cause a full interface queue wedge, resulting in a denial of service (DoS) condition. This issue is due to improper handling of DHCP request packets. An attacker could exploit this by sending DHCP request packets to an affected device, potentially causing packets to wedge in the queue and creating a DoS condition for downstream devices, which would require a system restart to resolve.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2025-10322

CVE-2025-20162

Affected Products

Cisco Ios Xe

References · 7

• https://bdu.fstec.ru/vul/2025-10322 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-dhcpsn-dos-xBn8Mtks · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-20162 · Security Note
• https://osv.dev/vulnerability/CVE-2025-20162 · Vendor Advisory
• https://t.me/cvenotify/128551 · Telegram Post
• https://twitter.com/cybercronai/status/1920504091177853003 · Twitter Post
• https://twitter.com/CVEnew/status/1920246401587442129 · Twitter Post