CVE-2022-20682 — Unchecked Return Value to NULL Pointer Dereference in Cisco IOS XE Software
Severity
8.6HIGHNVD
EPSS
1.0%
top 23.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 15
Latest updateApr 16
Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless networ…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0
Affected Packages2 packages
🔴Vulnerability Details
2GHSA▶
GHSA-vmq7-2pqh-rj6g: A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software fo↗2022-04-16
CVEList▶
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability↗2022-04-15
📋Vendor Advisories
1Cisco▶
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability↗2022-04-13