CVE-2021-34727
Description
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.
Risk Information
Base Score
9.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
1.0
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Cisco IOS XE SD-WAN Software Buffer Overflow Vulnerability For Cisco IOS XE SD-WAN Software | NCM |
| Buffer Copy without Checking Size of Input (Classic Buffer Overflow) Vulnerability (CVE-2021-34727) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1706092 | Security Update for Cisco IOS XE SD-WAN Software sdwan-20.6(999.751) |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234