CVE-2011-1643

CVE-2011-1643 is a critical-severity vulnerability in Cisco Unified Communications Manager with a CVSS 2.0 base score of 10.0. 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-200.

Key facts

• Severity: Critical (CVSS 2.0 base score 10.0)
• EPSS exploit prediction: 2% (77th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-200
• Affected product: Cisco Unified Communications Manager
• Published: 2011-08-29
• Last modified: 2026-06-16

Description

Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x, 7.x before 7.1(5b)su4, 8.0, and 8.5 before 8.5(1)su2 and Cisco Unified Presence Server 6.x, 7.x, 8.0, and 8.5 before 8.5xnr allow remote attackers to read database data by connecting to a query interface through an SSL session, aka Bug IDs CSCti81574, CSCto63060, CSCto72183, and CSCto73833.

Frequently asked questions

What is CVE-2011-1643?

Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x, 7.x before 7.1(5b)su4, 8.0, and 8.5 before 8.5(1)su2 and Cisco Unified Presence Server 6.x, 7.x, 8.0, and 8.5 before 8.5xnr allow remote attackers to read database data by connecting to a query interface through an SSL session, aka Bug IDs CSCti81574, CSCto63060, CSCto72183, and CSCto73833.

How severe is CVE-2011-1643?

CVE-2011-1643 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2011-1643 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1643?

CVE-2011-1643 primarily affects Cisco Unified Communications Manager. In total, 69 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1643?

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-2011-1643 published?

CVE-2011-1643 was published on 2011-08-29 and last updated on 2026-06-16.

References

• http://www.cisco.com/en/US/products/products_security_advisory09186a0080b8f532.shtml

Affected products (69)

• cpe:2.3:a:cisco:unified_communications_manager:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(1\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(1a\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(1b\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(2\)su1a:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(3\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(3a\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(3b\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(3b\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(4\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(4\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(4a\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(4a\)su2:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(5\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(5\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:6.1\(5\)su2:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.0\(1\)su1a:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.0\(2\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.0\(2a\)su2:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(3\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1a:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\)su2:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\)su1:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(5\)su1a:*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(5a\):*:*:*:*:*:*:*
• cpe:2.3:a:cisco:unified_communications_manager:7.1\(5b\):*:*:*:*:*:*:*

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