The Certificate Authority Proxy Function (CAPF) service in Cisco Unified Communications Manager (CUCM) 4.1 before 4.1(3)SR7, 4.2 before 4.2(3)SR4, and 4.3 before 4.3(2) allows remote attackers to cause a denial of service (service crash) via malformed network traffic, aka Bug ID CSCsk46770.
Conclusion & alert: CVE-2008-1744 is rated Moderate Risk (53.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.18%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 1.04% | 1.18% | +0.14% |
| 2 | 2025-03-30 | 0.80% | 1.04% | +0.25% |
| 3 | 2025-03-29 | — | 0.80% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | unified_callmanager | 4.1 | cpe:2.3:a:cisco:unified_callmanager:4.1:*:*:*:*:*:*:* |
| cisco | unified_callmanager | 4.1_3_sr4 | cpe:2.3:a:cisco:unified_callmanager:4.1_3_sr4:*:*:*:*:*:*:* |
| cisco | unified_callmanager | 4.1_3_sr5 | cpe:2.3:a:cisco:unified_callmanager:4.1_3_sr5:*:*:*:*:*:*:* |
| cisco | unified_callmanager | 4.1_3_sr5b | cpe:2.3:a:cisco:unified_callmanager:4.1_3_sr5b:*:*:*:*:*:*:* |
| cisco | unified_callmanager | 4.1_3_sr5c | cpe:2.3:a:cisco:unified_callmanager:4.1_3_sr5c:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 4.2_3_sr2 | cpe:2.3:a:cisco:unified_communications_manager:4.2_3_sr2:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 4.2_3_sr2b | cpe:2.3:a:cisco:unified_communications_manager:4.2_3_sr2b:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 4.2_3_sr3 | cpe:2.3:a:cisco:unified_communications_manager:4.2_3_sr3:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 4.3 | cpe:2.3:a:cisco:unified_communications_manager:4.3:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 4.3_1_sr1 | cpe:2.3:a:cisco:unified_communications_manager:4.3_1_sr1:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 5.1_1 | cpe:2.3:a:cisco:unified_communications_manager:5.1_1:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 5.1_2 | cpe:2.3:a:cisco:unified_communications_manager:5.1_2:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 5.1_2a | cpe:2.3:a:cisco:unified_communications_manager:5.1_2a:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 5.1_2b | cpe:2.3:a:cisco:unified_communications_manager:5.1_2b:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 5.1_3a | cpe:2.3:a:cisco:unified_communications_manager:5.1_3a:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 6.0 | cpe:2.3:a:cisco:unified_communications_manager:6.0:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 6.0_1 | cpe:2.3:a:cisco:unified_communications_manager:6.0_1:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 6.0_1a | cpe:2.3:a:cisco:unified_communications_manager:6.0_1a:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 6.1 | cpe:2.3:a:cisco:unified_communications_manager:6.1:*:*:*:*:*:*:* |
| cisco | unified_communications_manager | 6.1_1a | cpe:2.3:a:cisco:unified_communications_manager:6.1_1a:*:*:*:*:*:*:* |