CVE-2015-6303
CVE-2015-6303 is a medium-severity vulnerability in Cisco Spark with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.
Key facts
- Severity: Medium (CVSS 2.0 base score 4.3)
- EPSS exploit prediction: 1% (41st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-200
- Affected product: Cisco Spark
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2015-6303?
- 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.
- How severe is CVE-2015-6303?
- CVE-2015-6303 has a CVSS 2.0 base score of 4.3, rated medium severity.
- Is CVE-2015-6303 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2015-6303?
- CVE-2015-6303 affects Cisco Spark. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2015-6303?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2015-6303 published?
- CVE-2015-6303 was published on 2015-09-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:cisco:spark:2015-07-04_base:*:*:*:*:*:*:*
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