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CVE-2021-34727

Cisco IOS XE SD-WAN Software Buffer Overflow Vulnerability

CVSS 9.8 CRITICALEPSS 2.5%CWE-120
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.8EPSS 2.5%KEV nãoPoC Nuclei Metasploit Patch referenciado
Lifecycle
23 Sep 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. This vulnerability is due to insufficient bounds checking when an affected device processes traffic. An attacker could exploit this vulnerability by sending crafted traffic to the device. A successful exploit could allow the attacker to cause a buffer overflow and possibly execute arbitrary commands with root-level privileges, or cause the device to reload, which could result in a denial of service condition.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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