Is CVE-2008-1743 being actively exploited?

CVE-2008-1743 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2008-1743?

CVE-2008-1743 has a CVSS 2.0 base score of 7.8 (HIGH).

CVE-2008-1743

HIGH · CVSS 7.8EPSS 1.5%EU EUVD

Memory leak in the Certificate Trust List (CTL) Provider service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) and 6.x before 6.1(1) allows remote attackers to cause a denial of service (memory consumption and service interruption) via a series of malformed TCP packets, aka Bug ID CSCsi98433.

Key facts

CVSS score: 7.8 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-399
EPSS score: 1.5% (74th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2008-1743)
Published: May 16, 2008
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2008-1743 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

cisco / unified communications manager

References

http://secunia.com/advisories/30238(Third Party Advisory)
http://securitytracker.com/id?1020022(Third Party Advisory, VDB Entry)
http://www.cisco.com/en/US/products/products_security_advisory09186a0080995688.shtml(Vendor Advisory)
http://www.securityfocus.com/bid/29221(Third Party Advisory, VDB Entry)
http://www.vupen.com/english/advisories/2008/1533(Third Party Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/42414(Third Party Advisory, VDB Entry)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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