How severe is CVE-2015-0615?

CVE-2015-0615 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2015-0615 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0615?

CVE-2015-0615 primarily affects Cisco Unity Connection. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0615?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-0615 published?

CVE-2015-0615 was published on 2015-04-03 and last updated on 2026-06-17.

CVE-2015-0615

CVE-2015-0615 is a high-severity vulnerability in Cisco Unity Connection with a CVSS 2.0 base score of 7.1. 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-19.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Cisco Unity Connection
Published: 2015-04-03
Last modified: 2026-06-17

Description

The call-handling implementation in Cisco Unity Connection 8.5 before 8.5(1)SU7, 8.6 before 8.6(2a)SU4, 9.x before 9.1(2)SU2, and 10.0 before 10.0(1)SU1, when SIP trunk integration is enabled, allows remote attackers to cause a denial of service (port consumption) by improperly terminating SIP sessions, aka Bug ID CSCul28089.

Frequently asked questions

What is CVE-2015-0615?: The call-handling implementation in Cisco Unity Connection 8.5 before 8.5(1)SU7, 8.6 before 8.6(2a)SU4, 9.x before 9.1(2)SU2, and 10.0 before 10.0(1)SU1, when SIP trunk integration is enabled, allows remote attackers to cause a denial of service (port consumption) by improperly terminating SIP sessions, aka Bug ID CSCul28089.
How severe is CVE-2015-0615?: CVE-2015-0615 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2015-0615 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0615?: CVE-2015-0615 primarily affects Cisco Unity Connection. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0615?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-0615 published?: CVE-2015-0615 was published on 2015-04-03 and last updated on 2026-06-17.

References

Affected products (21)

cpe:2.3:a:cisco:unity_connection:8.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.5_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6\(1a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6\(2a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6\(2a\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6\(2a\)su2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6\(2a\)su3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:8.6_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:9.0\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:9.1\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:9.1\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:10.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unity_connection:10.0.5:*:*:*:*:*:*:*

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