8.6

CVE-2025-20162: cisco cisco ios xe software Uncontrolled Resource Consumption

CVSS: 8.6v3.1HighAnalyzed
Published 07-05-2025Last modified 07-05-2025
Open JSON

Vulnerability summary

CVE-2025-20162 is a high (CVSS 8.6) Uncontrolled Resource Consumption vulnerability in cisco cisco ios xe software. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.6% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
0.54%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-05-2025
    PublishedVulnerability first disclosed.
  2. 07-05-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service (DoS) condition. This vulnerability is due to improper handling of DHCP request packets. An attacker could exploit this vulnerability by sending DHCP request packets to an affected device. A successful exploit could allow the attacker to cause packets to wedge in the queue, creating a DoS condition for downstream devices of the affected system and requiring that the system restart to drain the queue. Note: This vulnerability can be exploited with either unicast or broadcast DHCP packets on a VLAN that does not have DHCP snooping enabled.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

45%

Versus all other CVEs

30-day change

+0.02 pp

From 0.52% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco ios xe software16.11.1 | 16.11.1a | 16.11.2 | 16.11.1s | 16.12.1 | 16.12.1s | 16.12.1a | 16.12.1c | 16.12.2 | 16.12.3 | 16.12.8 | 16.12.2s | 16.12.4 | 16.12.3s | 16.12.5 | 16.12.6 | 16.12.7 | 17.1.1 | 17.1.1s | 17.1.1t | 17.1.3 | 17.2.1 | 17.2.1r | 17.2.1v | 17.2.2 | 17.2.3 | 17.3.1 | 17.3.2 | 17.3.3 | 17.3.1a | 17.3.4 | 17.3.5 | 17.3.4a | 17.3.6 | 17.3.7 | 17.3.8 | 17.3.8a | 17.4.1 | 17.4.2 | 17.4.1a | 17.4.1b | 17.5.1 | 17.5.1a | 17.6.1 | 17.6.2 | 17.6.1a | 17.6.3 | 17.6.1y | 17.6.3a | 17.6.4 | 17.6.5 | 17.6.6 | 17.6.6a | 17.6.5a | 17.6.7 | 17.6.8 | 17.6.8a | 17.7.1 | 17.7.1a | 17.7.2 | 17.10.1 | 17.10.1a | 17.8.1 | 17.8.1a | 17.9.1 | 17.9.2 | 17.9.1a | 17.9.3 | 17.9.2a | 17.9.3a | 17.9.4 | 17.9.5 | 17.9.4a | 17.9.5a | 17.9.6 | 17.9.5e | 17.9.5f | 17.11.1 | 17.11.1a | 17.12.1 | 17.12.1a | 17.12.2 | 17.12.3 | 17.12.4 | 17.12.3a | 17.12.4a | 17.12.4b | 17.13.1 | 17.13.1a | 17.14.1 | 17.14.1a | 17.15.1 | 17.15.1a
  • ios_xe16.11.1 | 16.11.1a | 16.11.1s | 16.11.2 | 16.12.1 | 16.12.1a | 16.12.1c | 16.12.1s | 16.12.2 | 16.12.2s | 16.12.3 | 16.12.3s | 16.12.4 | 16.12.5 | 16.12.6 | 16.12.7 | 16.12.8 | 17.1.1 | 17.1.1s | 17.1.1t | 17.1.3 | 17.2.1 | 17.2.1r | 17.2.1v | 17.2.2 | 17.2.3 | 17.3.1 | 17.3.1a | 17.3.2 | 17.3.3 | 17.3.4 | 17.3.4a | 17.3.5 | 17.3.6 | 17.3.7 | 17.3.8 | 17.3.8a | 17.4.1 | 17.4.1a | 17.4.1b | 17.4.2 | 17.5.1 | 17.5.1a | 17.6.1 | 17.6.1a | 17.6.1y | 17.6.2 | 17.6.3 | 17.6.3a | 17.6.4 | 17.6.5 | 17.6.5a | 17.6.6 | 17.6.6a | 17.6.7 | 17.6.8 | 17.6.8a | 17.7.1 | 17.7.1a | 17.7.2 | 17.8.1 | 17.8.1a | 17.9.1 | 17.9.1a | 17.9.2 | 17.9.2a | 17.9.3 | 17.9.3a | 17.9.4 | 17.9.4a | 17.9.5 | 17.9.5a | 17.9.5e | 17.9.5f | 17.9.6 | 17.10.1 | 17.10.1a | 17.11.1 | 17.11.1a | 17.12.1 | 17.12.1a | 17.12.2 | 17.12.3 | 17.12.3a | 17.12.4 | 17.12.4a | 17.12.4b | 17.13.1 | 17.13.1a | 17.14.1 | 17.14.1a | 17.15.1 | 17.15.1a

1 vendor · 2 products

References

1 links