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CVE-2015-0616

19
FAUCET Score

CVE-2015-0616 is a denial-of-service vulnerability affecting Cisco Unity Connection versions 8.5, 8.6, and 9.x when SIP trunk integration is enabled. Remote attackers can exploit this by improperly terminating SIP TCP connections, leading to a core dump and service restart. With a CVSS score of 7.1, it is a high-severity vulnerability with a network attack vector and high impact on availability. While no public exploit code or active exploitation has been observed, it has received some community and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
8.5\(1\)CPE matchmatch criteria
cpe:2.3:a:cisco:unity_connection:8.5\(1\):*:*:*:*:*:*:*
8.5\(1\)su1CPE matchmatch criteria
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su1:*:*:*:*:*:*:*
8.5\(1\)su2CPE matchmatch criteria
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su2:*:*:*:*:*:*:*
8.5\(1\)su3CPE matchmatch criteria
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su3:*:*:*:*:*:*:*
8.5\(1\)su4CPE matchmatch criteria
cpe:2.3:a:cisco:unity_connection:8.5\(1\)su4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

AV:N/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.67%
Probability of exploitation in next 30 days
EPSS Percentile
74.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0167 is in the 31st percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20150401-cuc
Vendor Advisory
securitytracker.com / id/1032010