8.6

CVE-2024-20455: cisco cisco ios xe catalyst sd-wan State Issues

CVSS: 8.6v3.1HighAnalyzed
Published 25-09-2024Last modified 25-09-2024
Open JSON

Vulnerability summary

CVE-2024-20455 is a high (CVSS 8.6) State Issues vulnerability in cisco cisco ios xe catalyst sd-wan. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 50.7% 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
0.66%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-09-2024
    PublishedVulnerability first disclosed.
  2. 25-09-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the process that classifies traffic that is going to the Unified Threat Defense (UTD) component of Cisco IOS XE Software in controller mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because UTD improperly handles certain packets as those packets egress an SD-WAN IPsec tunnel. An attacker could exploit this vulnerability by sending crafted traffic through an SD-WAN IPsec tunnel that is configured on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: SD-WAN tunnels that are configured with Generic Routing Encapsulation (GRE) are not affected by this vulnerability.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.66%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.66% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.66%

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

Cisco4 products
  • cisco ios xe catalyst sd-wan17.5.1a | 17.6.1a | 17.6.2 | 17.6.4 | 17.7.1a | 17.9.1a | 17.9.2a | 17.9.3a | 17.9.4 | 17.8.1a | 17.10.1a | 17.11.1a | 17.12.1a | 17.13.1a
  • cisco ios xe software17.1.1 | 17.1.1a | 17.1.1s | 17.1.1t | 17.1.3 | 17.2.1 | 17.2.1r | 17.2.1a | 17.2.1v | 17.2.2 | 17.2.3 | 17.3.1 | 17.3.2 | 17.3.3 | 17.3.1a | 17.3.1w | 17.3.2a | 17.3.1x | 17.3.1z | 17.3.4 | 17.3.5 | 17.3.4a | 17.3.6 | 17.3.4b | 17.3.4c | 17.3.5a | 17.3.5b | 17.3.7 | 17.3.8 | 17.3.8a | 17.4.1 | 17.4.2 | 17.4.1a | 17.4.1b | 17.4.2a | 17.5.1 | 17.5.1a | 17.6.1 | 17.6.2 | 17.6.1w | 17.6.1a | 17.6.1x | 17.6.3 | 17.6.1y | 17.6.1z | 17.6.3a | 17.6.4 | 17.6.1z1 | 17.6.5 | 17.6.6 | 17.6.6a | 17.6.5a | 17.7.1 | 17.7.1a | 17.7.1b | 17.7.2 | 17.10.1 | 17.10.1a | 17.10.1b | 17.8.1 | 17.8.1a | 17.9.1 | 17.9.1w | 17.9.2 | 17.9.1a | 17.9.1x | 17.9.1y | 17.9.3 | 17.9.2a | 17.9.1x1 | 17.9.3a | 17.9.4 | 17.9.1y1 | 17.9.5 | 17.9.4a | 17.9.5a | 17.9.5b | 17.11.1 | 17.11.1a | 17.12.1 | 17.12.1w | 17.12.1a | 17.12.2 | 17.12.2a | 17.13.1 | 17.13.1a | 17.11.99SW
  • ios_xe17.1.1 | 17.1.1a | 17.1.1s | 17.1.1t | 17.1.3 | 17.2.1 | 17.2.1a | 17.2.1r | 17.2.1v | 17.2.2 | 17.2.3 | 17.3.1 | 17.3.1a | 17.3.1w | 17.3.1x | 17.3.1z | 17.3.2 | 17.3.2a | 17.3.3 | 17.3.4 | 17.3.4a | 17.3.4b | 17.3.4c | 17.3.5 | 17.3.5a | 17.3.5b | 17.3.6 | 17.3.7 | 17.3.8 | 17.3.8a | 17.4.1 | 17.4.1a | 17.4.1b | 17.4.2 | 17.4.2a | 17.5.1 | 17.5.1a | 17.6.1 | 17.6.1a | 17.6.1w | 17.6.1x | 17.6.1y | 17.6.1z | 17.6.1z1 | 17.6.2 | 17.6.3 | 17.6.3a | 17.6.4 | 17.6.5 | 17.6.5a | 17.6.6 | 17.6.6a | 17.7.1 | 17.7.1a | 17.7.1b | 17.7.2 | 17.8.1 | 17.8.1a | 17.9.1 | 17.9.1a | 17.9.1w | 17.9.1x | 17.9.1x1 | 17.9.1y | 17.9.1y1 | 17.9.2 | 17.9.2a | 17.9.3 | 17.9.3a | 17.9.4 | 17.9.4a | 17.9.5 | 17.9.5a | 17.9.5b | 17.10.1 | 17.10.1a | 17.10.1b | 17.11.1 | 17.11.1a | 17.11.99sw | 17.12.1 | 17.12.1a | 17.12.1w | 17.12.2 | 17.12.2a | 17.13.1 | 17.13.1a
  • ios_xe_sd-wan17.5.1a | 17.6.1a | 17.6.2 | 17.6.4 | 17.7.1a | 17.8.1a | 17.9.1a | 17.9.2a | 17.9.3a | 17.9.4 | 17.10.1a | 17.11.1a | 17.12.1a | 17.13.1a

1 vendor · 4 products

References

1 links