How severe is CVE-2009-1161?

CVE-2009-1161 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-1161 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1161?

CVE-2009-1161 primarily affects Cisco Ciscoworks Common Services. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1161?

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

When was CVE-2009-1161 published?

CVE-2009-1161 was published on 2009-05-21 and last updated on 2026-06-16.

CVE-2009-1161

CVE-2009-1161 is a critical-severity vulnerability in Cisco Ciscoworks Common Services with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Cisco Ciscoworks Common Services
Published: 2009-05-21
Last modified: 2026-06-16

Description

Directory traversal vulnerability in the TFTP service in Cisco CiscoWorks Common Services (CWCS) 3.0.x through 3.2.x on Windows, as used in Cisco Unified Service Monitor, Security Manager, TelePresence Readiness Assessment Manager, Unified Operations Manager, Unified Provisioning Manager, and other products, allows remote attackers to access arbitrary files via unspecified vectors.

Frequently asked questions

What is CVE-2009-1161?: Directory traversal vulnerability in the TFTP service in Cisco CiscoWorks Common Services (CWCS) 3.0.x through 3.2.x on Windows, as used in Cisco Unified Service Monitor, Security Manager, TelePresence Readiness Assessment Manager, Unified Operations Manager, Unified Provisioning Manager, and other products, allows remote attackers to access arbitrary files via unspecified vectors.
How severe is CVE-2009-1161?: CVE-2009-1161 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-1161 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1161?: CVE-2009-1161 primarily affects Cisco Ciscoworks Common Services. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1161?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-1161 published?: CVE-2009-1161 was published on 2009-05-21 and last updated on 2026-06-16.

References

Affected products (33)

cpe:2.3:a:cisco:ciscoworks_common_services:3.0.3:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_common_services:3.0.4:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_common_services:3.0.5:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_common_services:3.0.6:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_common_services:3.1:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_common_services:3.1.1:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_common_services:3.2:*:windows:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_health_and_utilization_monitor:1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_health_and_utilization_monitor:1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_lan_management_solution:2.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_lan_management_solution:2.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_lan_management_solution:3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_lan_management_solution:3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_qos_policy_manager:4.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_qos_policy_manager:4.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_voice_manager:3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:ciscoworks_voice_manager:3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:security_manager:3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:security_manager:3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:security_manager:3.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_readiness_assessment_manager:1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_operations_manager:1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_operations_manager:1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_operations_manager:2.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_operations_manager:2.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_provisioning_manager:1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_provisioning_manager:1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_provisioning_manager:1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_provisioning_manager:1.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_service_monitor:1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_service_monitor:1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_service_monitor:2.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_service_monitor:2.1:*:*:*:*:*:*:*

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