SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-0104

A vulnerability in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) files could allow a remote attacker to execute arbitrary code on the system of a targeted user.

CRITICAL 9.6EPSS 3.77%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) files could allow a remote attacker to execute arbitrary code on the system of a targeted user. The attacker could exploit this vulnerability by sending the user a link or email attachment with a malicious ARF file and persuading the user to follow the link or launch the file. Successful exploitation could allow the attacker to execute arbitrary code on the user's system. 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: CSCvg78853, CSCvg78856, CSCvg78857.

CVSS 3.0
9.6 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS
3.77% probability · 90th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
cisco/webex business suite · cisco/webex meetings · cisco/webex meetings server · cisco/webex network recording player
Source
psirt@cisco.com
EPSS trend
0%3%5%27 October 2026: 3.77%27 October 202627 October 2026

EPSS 3.8% 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

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