CVE-2015-6303

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-09-24 · updated 2026-06-17
Weakness: CWE-200

Description

The Cisco Spark application 2015-07-04 for mobile operating systems does not properly verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate, aka Bug IDs CSCut36742 and CSCut36844.

Affected products

Cisco Spark Messaging: 2015-07-04_base

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=41127
http://tools.cisco.com/security/center/viewAlert.x?alertId=41127

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