CVE-2023-20202

At a glance

Severity
MEDIUM 6.1
EPSS
EPSS 0.27 % · percentile 19 (2026-10-28)
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Modified

Description

A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper memory management. An attacker could exploit this vulnerability by sending a series of network requests to an affected device. A successful exploit could allow the attacker to cause the wncd process to consume available memory and eventually cause the device to reload, resulting in a DoS condition.

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HNVD · psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco · Cisco IOS XE Softwareaffected 17.10.1 ; affected 17.10.1a ; affected 17.10.1b ; affected 17.9.1 ; affected 17.9.1w ; affected 17.9.2

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD