How severe is CVE-2015-6425?

CVE-2015-6425 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6425 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6425?

CVE-2015-6425 affects Cisco Unified Communications Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6425?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-6425 published?

CVE-2015-6425 was published on 2015-12-16 and last updated on 2026-06-17.

CVE-2015-6425

CVE-2015-6425 is a medium-severity vulnerability in Cisco Unified Communications Manager with a CVSS 2.0 base score of 5.0. 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Unified Communications Manager
Published: 2015-12-16
Last modified: 2026-06-17

Description

The WebApplications Identity Management subsystem in Cisco Unified Communications Manager 10.5(0.98000.88) allows remote attackers to cause a denial of service (subsystem outage) via invalid session tokens, aka Bug ID CSCul83786.

Frequently asked questions

What is CVE-2015-6425?: The WebApplications Identity Management subsystem in Cisco Unified Communications Manager 10.5(0.98000.88) allows remote attackers to cause a denial of service (subsystem outage) via invalid session tokens, aka Bug ID CSCul83786.
How severe is CVE-2015-6425?: CVE-2015-6425 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6425 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6425?: CVE-2015-6425 affects Cisco Unified Communications Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6425?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6425 published?: CVE-2015-6425 was published on 2015-12-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:unified_communications_manager:10.5\(0.98000.88\):*:*:*:*:*:*:*

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