CVE detail
CVE-2021-34770
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to execute arbitrary code with administrative privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a logic error that occurs during the validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device. A successful exploit could allow the attacker to execute arbitrary code with administrative privileges or cause the affected device to crash and reload, resulting in a DoS condition.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 11.0 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
2 source links · newest first
- Cisco addresses 3 critical vulnerabilities in IOS XE SoftwareSecurity Affairs
Cisco fixed three critical flaws impacting IOS XE operating system powering some of its devices, such as routers and wireless controllers. Cisco has addressed three critical vulnerabilities impacting its IOS XE operating system powering multiple products, including routers and wireless controllers. The most severe of these vulnerabilities is a Remote Code Execution Vulnerability, tracked as CVE-2021-34770, […]
newssecurityaffairs.comSep 24, 2021, 12:12 PM Cisco this week announced the availability of patches for a series of critical vulnerabilities in IOS XE software that could be exploited to execute arbitrary code remotely, cause denial of service, or manipulate device configuration.
newswww.securityweek.comSep 23, 2021, 1:32 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2023-20100CVSS 6.8 · Medium
A vulnerability in the access point (AP) joining process of the Control and Provisioning of Wireless Access Points (CAPWAP) protocol of Cisco IOS XE Software for Wireless LAN Cont…
- CVE-2022-20810CVSS 6.5 · Medium
A vulnerability in the Simple Network Management Protocol (SNMP) of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an authenticated, remote att…
- CVE-2021-34769CVSS 8.6 · High
Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Co…
- CVE-2021-34768CVSS 8.6 · High
Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Co…
- CVE-2021-34767CVSS 7.4 · High
A vulnerability in IPv6 traffic processing of Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, adjacen…
- CVE-2022-20856CVSS 8.6 · High
A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) Mobility messages in Cisco IOS XE Wireless Controller Software for the Catalyst 90…