Cisco SD-WAN Solution Software Denial of Service Vulnerability
Description
A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper validation of fields in Cisco SD-WAN peering messages that are encapsulated in UDP packets. An attacker could exploit this vulnerability by sending crafted UDP messages to the targeted system. A successful exploit could allow the attacker to cause services on the device to fail, resulting in a DoS condition that could impact the targeted device and other devices that depend on it.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
An unauthenticated remote attacker can cause a denial of service in Cisco SD-WAN Solution Software by sending crafted UDP packets.
Vulnerability
The vulnerability resides in Cisco SD-WAN Solution Software due to improper validation of fields in peering messages encapsulated in UDP packets. An unauthenticated, remote attacker can trigger a denial of service condition. Affected versions are those prior to the fixed releases specified in the Cisco advisory [1].
Exploitation
The attacker sends crafted UDP messages to the targeted system. No authentication or prior access is required; the attack is network-based and can be launched remotely [1].
Impact
Successful exploitation causes services on the device to fail, resulting in a denial of service (DoS) condition that can affect the targeted device and other devices that depend on it [1].
Mitigation
Cisco has released free software updates to address this vulnerability. Customers should upgrade to the fixed versions as indicated in the Cisco Security Advisory [1]. No workarounds are available.
AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2(expand)+ 1 more
- (no CPE)
- (no CPE)range: n/a
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdw-dos-KWOdyHnBmitrevendor-advisoryx_refsource_CISCO
News mentions
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