CVE-2011-2738

Multiple unspecified vulnerabilities in Cisco Unified Service Monitor before 8.6, as used in Unified Operations Manager before 8.6 and CiscoWorks LAN Management Solution 3.x and 4.x before 4.1; and multiple EMC Ionix products including Application Connectivity Monitor (Ionix ACM) 2.3 and earlier, Adapter for Alcatel-Lucent 5620 SAM EMS (Ionix ASAM) 3.2.0.2 and earlier, IP Management Suite (Ionix IP) 8.1.1.1 and earlier, and other Ionix products; allow remote attackers to execute arbitrary code via crafted packets to TCP port 9002, aka Bug IDs CSCtn42961 and CSCtn64922, related to a buffer overflow.

Published: 2011-09-19 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2738 is rated High Risk (70.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 10.96%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-2738

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 14.13% 10.96% -3.17%
2 2026-03-19 11.33% 14.13% +2.81%
3 2025-03-30 — 11.33% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2738

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2011-2738

Affected software / configurations for CVE-2011-2738

Vendor Product Version Raw CPE
cisco unified_service_monitor <= 8.5 cpe:2.3:a:cisco:unified_service_monitor:*:*:*:*:*:*:*:*
cisco unified_service_monitor 1.1 cpe:2.3:a:cisco:unified_service_monitor:1.1:*:*:*:*:*:*:*
cisco unified_service_monitor 2.0 cpe:2.3:a:cisco:unified_service_monitor:2.0:*:*:*:*:*:*:*
cisco unified_service_monitor 2.0.1 cpe:2.3:a:cisco:unified_service_monitor:2.0.1:*:*:*:*:*:*:*
cisco unified_service_monitor 2.1 cpe:2.3:a:cisco:unified_service_monitor:2.1:*:*:*:*:*:*:*
cisco unified_service_monitor 2.2 cpe:2.3:a:cisco:unified_service_monitor:2.2:*:*:*:*:*:*:*
cisco unified_service_monitor 2.3 cpe:2.3:a:cisco:unified_service_monitor:2.3:*:*:*:*:*:*:*
cisco unified_service_monitor 8.0 cpe:2.3:a:cisco:unified_service_monitor:8.0:*:*:*:*:*:*:*
cisco ciscoworks_lan_management_solution 3.0 cpe:2.3:a:cisco:ciscoworks_lan_management_solution:3.0:*:*:*:*:*:*:*
cisco ciscoworks_lan_management_solution 3.0 cpe:2.3:a:cisco:ciscoworks_lan_management_solution:3.0:december_2007:*:*:*:*:*:*
cisco ciscoworks_lan_management_solution 3.1 cpe:2.3:a:cisco:ciscoworks_lan_management_solution:3.1:*:*:*:*:*:*:*
cisco ciscoworks_lan_management_solution 3.2 cpe:2.3:a:cisco:ciscoworks_lan_management_solution:3.2:*:*:*:*:*:*:*
cisco ciscoworks_lan_management_solution 4.0 cpe:2.3:a:cisco:ciscoworks_lan_management_solution:4.0:*:*:*:*:*:*:*
cisco ciscoworks_lan_management_solution 4.0.1 cpe:2.3:a:cisco:ciscoworks_lan_management_solution:4.0.1:*:*:*:*:*:*:*
cisco unified_operations_manager <= 8.5 cpe:2.3:a:cisco:unified_operations_manager:*:*:*:*:*:*:*:*
cisco unified_operations_manager 1.0 cpe:2.3:a:cisco:unified_operations_manager:1.0:*:*:*:*:*:*:*
cisco unified_operations_manager 1.1 cpe:2.3:a:cisco:unified_operations_manager:1.1:*:*:*:*:*:*:*
cisco unified_operations_manager 2.0 cpe:2.3:a:cisco:unified_operations_manager:2.0:*:*:*:*:*:*:*
cisco unified_operations_manager 2.0.1 cpe:2.3:a:cisco:unified_operations_manager:2.0.1:*:*:*:*:*:*:*
cisco unified_operations_manager 2.0.2 cpe:2.3:a:cisco:unified_operations_manager:2.0.2:*:*:*:*:*:*:*
cisco unified_operations_manager 2.0.3 cpe:2.3:a:cisco:unified_operations_manager:2.0.3:*:*:*:*:*:*:*
cisco unified_operations_manager 2.1 cpe:2.3:a:cisco:unified_operations_manager:2.1:*:*:*:*:*:*:*
cisco unified_operations_manager 2.2 cpe:2.3:a:cisco:unified_operations_manager:2.2:*:*:*:*:*:*:*
cisco unified_operations_manager 2.3 cpe:2.3:a:cisco:unified_operations_manager:2.3:*:*:*:*:*:*:*
cisco unified_operations_manager 8.0 cpe:2.3:a:cisco:unified_operations_manager:8.0:*:*:*:*:*:*:*
emc ionix_acm <= 2.3 cpe:2.3:a:emc:ionix_acm:*:*:*:*:*:*:*:*
emc ionix_asam <= 3.2.0.2 cpe:2.3:a:emc:ionix_asam:*:*:*:*:*:*:*:*
emc ionix_ip <= 8.1.1.1 cpe:2.3:a:emc:ionix_ip:*:*:*:*:*:*:*:*

References for CVE-2011-2738

URL Tags
http://secunia.com/advisories/45979 Vendor Advisory
http://secunia.com/advisories/46016 Vendor Advisory
http://secunia.com/advisories/46052 Vendor Advisory
http://secunia.com/advisories/46053 Vendor Advisory
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b9351e.shtml Vendor Advisory
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b9351f.shtml Vendor Advisory
http://www.osvdb.org/75442
http://www.securityfocus.com/archive/1/519646/100/0/threaded
http://www.securityfocus.com/bid/49627
http://www.securityfocus.com/bid/49644
http://www.securitytracker.com/id?1026046
http://www.securitytracker.com/id?1026047
http://www.securitytracker.com/id?1026048
http://www.securitytracker.com/id?1026059
https://exchange.xforce.ibmcloud.com/vulnerabilities/69828
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