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CVE-2016-1466

25
FAUCET Score

CVE-2016-1466 describes a denial-of-service vulnerability in several versions of Cisco Unified Communications Manager IM and Presence Service. Remote attackers can trigger a sipd process restart by sending crafted headers within a SIP packet. This vulnerability has a CVSS v3 score of 7.5 (High), indicating it can be exploited over the network with low attack complexity, requiring no user interaction, and resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
9.1\(1\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:9.1\(1\):*:*:*:*:*:*:*
10.5\(2\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:10.5\(2\):*:*:*:*:*:*:*
11.0\(1\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.0\(1\):*:*:*:*:*:*:*
11.5\(1\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.87%
Probability of exploitation in next 30 days
EPSS Percentile
85.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0287 is in the 74th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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-20160803-ucm
Vendor Advisory
securityfocus.com / bid/92271
securitytracker.com / id/1036526