SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-3495

A vulnerability in Cisco Jabber for Windows could allow an authenticated, remote attacker to execute arbitrary code.

HIGH 8.8EPSS 60.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 60.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

A vulnerability in Cisco Jabber for Windows could allow an authenticated, remote attacker to execute arbitrary code. The vulnerability is due to improper validation of message contents. An attacker could exploit this vulnerability by sending specially crafted Extensible Messaging and Presence Protocol (XMPP) messages to the affected software. A successful exploit could allow the attacker to cause the application to execute arbitrary programs on the targeted system with the privileges of the user account that is running the Cisco Jabber client software, possibly resulting in arbitrary code execution.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
60.54% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
cisco/jabber
Source
psirt@cisco.com
EPSS trend
0%33%65%3 November 2026: 60.54%3 November 20263 November 2026

EPSS 60.5% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. 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.