High severity · published Jun 3, 2020
CVE-2020-3228
A vulnerability in Security Group Tag Exchange Protocol (SXP) in Cisco IOS Software, Cisco IOS XE Software, and Cisco NX-OS Software could allow an unauthenticated, remote…
8.6
CVSS
1.8%
EPSS
No
On KEV
Description
A vulnerability in Security Group Tag Exchange Protocol (SXP) in Cisco IOS Software, Cisco IOS XE Software, and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because crafted SXP packets are mishandled. An attacker could exploit this vulnerability by sending specifically crafted SXP packets to the affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IX
IOS XE · Cisco
3.3.0se; 3.3.0xo; 3.3.1se; 3.3.1xo; 3.3.2se; 3.3.2xo; +34 more · source: NVD
IO
Ios · Cisco
12.2(6)i1; 15.1(1)sy; 15.1(1)sy1; 15.1(1)sy2; 15.1(1)sy3; 15.1(1)sy4; +34 more · source: NVD
NX
Nx-os · Cisco
5.2(1)sv3(3.1); 5.2(1)sv3(3.15); 5.2(1)sv3(4.1); 5.2(1)sv3(4.1a); 5.2(1)sv3(4.1b); 5.2(1)sv5(1.1); +3 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3228
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-3228
Patch
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sxp-68TEVzR
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