SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-12359

A Buffer Overflow vulnerability in Cisco WebEx Network Recording Player for Advanced Recording Format (.arf) files could allow an attacker to execute arbitrary code on a system.

MEDIUM 6.5EPSS 1.67%

Does this matter?

Lower severity and a low EPSS score (1.67%). Track it; it rarely justifies an emergency change on its own.

Description

A Buffer Overflow vulnerability in Cisco WebEx Network Recording Player for Advanced Recording Format (.arf) files could allow an attacker to execute arbitrary code on a system. An attacker could exploit this vulnerability by providing a user with a malicious .arf file via email or URL and convincing the user to launch the file. Exploitation of this vulnerability could allow arbitrary code execution on the system of the targeted user. This vulnerability affects Cisco WebEx Business Suite meeting sites, Cisco WebEx Meetings sites, Cisco WebEx Meetings Server, and Cisco WebEx ARF players. Cisco Bug IDs: CSCve10729, CSCve10771, CSCve10779, CSCve11521, CSCve11543.

CVSS 3.0
6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
1.67% probability · 77th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
cisco/webex meeting center · cisco/webex meetings server
Source
psirt@cisco.com
EPSS trend
0%3%5%27 October 2026: 1.67%27 October 202627 October 2026

EPSS 1.7% 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.

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