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CVE-2021-1471

Cisco Jabber Desktop and Mobile Client Software Vulnerabilities

MEDIUM
5.6
CVSS Score
Published: March 24, 2021 at 08:07 PM UTC
Updated: June 17, 2026 at 03:31 AM UTC
1 product affected across 1 vendorJabber

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Severity
MEDIUM5.6
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms could allow an attacker to execute arbitrary programs on the underlying operating system with elevated privileges, access sensitive information, intercept protected network traffic, or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Jabber· Cisco
95%
v ≤ 12.9.0v < 12.1.5v < 12.8.712.5.0 ≤ v < 12.5.412.6.0 ≤ v < 12.6.512.7.0 ≤ v < 12.7.412.8.0 ≤ v < 12.8.512.9.0 ≤ v < 12.9.512.9.0 ≤ v < 12.9.6
Affected range stops below 12.1.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.5.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.6.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.7.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.8.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.8.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.9.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.9.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisoryx_refsource_CISCO
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-jabber-PWrTATTC

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.6MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-170CWE-295

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