How severe is CVE-2008-1742?

CVE-2008-1742 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2008-1742 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1742?

CVE-2008-1742 primarily affects Cisco Unified Communications Manager. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-1742?

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

When was CVE-2008-1742 published?

CVE-2008-1742 was published on 2008-05-16 and last updated on 2026-06-16.

CVE-2008-1742

CVE-2008-1742 is a high-severity vulnerability in Cisco Unified Communications Manager with a CVSS 2.0 base score of 7.8. 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-399.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Unified Communications Manager
Published: 2008-05-16
Last modified: 2026-06-16

Description

Memory leak in the Certificate Trust List (CTL) Provider service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) allows remote attackers to cause a denial of service (memory consumption and service interruption) via a series of malformed TCP packets, as demonstrated by TCPFUZZ, aka Bug ID CSCsj80609.

Frequently asked questions

What is CVE-2008-1742?: Memory leak in the Certificate Trust List (CTL) Provider service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) allows remote attackers to cause a denial of service (memory consumption and service interruption) via a series of malformed TCP packets, as demonstrated by TCPFUZZ, aka Bug ID CSCsj80609.
How severe is CVE-2008-1742?: CVE-2008-1742 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2008-1742 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1742?: CVE-2008-1742 primarily affects Cisco Unified Communications Manager. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-1742?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-1742 published?: CVE-2008-1742 was published on 2008-05-16 and last updated on 2026-06-16.

References

Affected products (13)

cpe:2.3:a:cisco:unified_communications_manager:4.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:4.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:4.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:5.1:\(1\):*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:5.1:\(2\):*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:5.1:\(2a\):*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:5.1:\(2b\):*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:5.1:\(3a\):*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:6.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:6.0:\(1\):*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:6.0:\(1a\):*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:6.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:6.1:\(1a\):*:*:*:*:*:*

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