VulnerabilityModified

CVE-2017-12355

MEDIUM 5.3EPSS 3.07%

Does this matter?

Lower severity and a low EPSS score (3.07%). Track it; it rarely justifies an emergency change on its own.

Description

A vulnerability in the Local Packet Transport Services (LPTS) ingress frame-processing functionality of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause one of the LPTS processes on an affected system to restart unexpectedly, resulting in a brief denial of service (DoS) condition. The vulnerability is due to incomplete LPTS frame validation by the affected software. An attacker could exploit this vulnerability by sending crafted XML requests to the management interface of an affected system. A successful exploit could allow the attacker to cause one of the LPTS processes on the affected system to restart unexpectedly, which would impact LPTS traffic and cause a brief DoS condition while the process restarts. Cisco Bug IDs: CSCvf76332.

CVSS 3.0: 5.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS: 3.07% probability · 88th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-399, CWE-20
Affected: cisco/ios xr
Source: psirt@cisco.com

EPSS trend

EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://www.securityfocus.com/bid/101989Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039927Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ios-xrVendor Advisory
http://www.securityfocus.com/bid/101989Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039927Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ios-xrVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.