Critical severity · published Jul 31, 2020
CVE-2020-3375
A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device
9.8
CVSS
3.9%
EPSS
No
On KEV
Description
A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access, make changes to the system that they are not authorized to make, and execute commands on an affected system with privileges of the root user.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.9% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IX
Ios XE Sd-wan · Cisco
through 16.9.0; 16.12.0 through 16.12.4; 17.2.0 through 17.2.1 · source: NVD
SD
Sd-wan · Cisco
through 18.3.0; 18.4.0 before 18.4.5; 19.2.0 before 19.2.2; 19.3.0 before 20.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3375
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-3375
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdbufof-h5f5VSeL
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