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Vulnerability record · public intelligence
CVE-2020-27133
CRITICAL

Cisco Jabber Desktop and Mobile Client Software Vulnerabilities

Published Dec 11, 2020 · Updated Nov 3, 2026

Severity · CVSSCRITICAL · Not scored
Known exploitationNot listed
EPSS / likelihood1.14%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

Cisco Jabber Desktop and Mobile Client Software Vulnerabilities

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

Multiple vulnerabilities in Cisco Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms could allow an attacker to execute arbitrary programs on the underlying operating system (OS) with elevated privileges or gain access to sensitive information. For more information about these vulnerabilities, see the Details section of this advisory.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5
SSVC priority
MEDIUM
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. 20201210 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities ↗

Record history

Published Dec 11, 2020 · Last refreshed Nov 3, 2026