CVE-2008-4543

Severity: high (CVSS 7.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-10-13 · updated 2026-06-16
Weakness: CWE-399

Description

Cisco Unity 4.x before 4.2(1)ES161, 5.x before 5.0(1)ES53, and 7.x before 7.0(2)ES8, when using anonymous authentication (aka native Unity authentication), allows remote attackers to cause a denial of service (session exhaustion) via a large number of connections.

Affected products

Cisco Unity: through 4.2\(1\); through 5.0\(1\); through 7.0\(2\); 4.0, 4.0(1), 4.0(2), 4.0(3), 4.0(3)-sr2, 4.0(4) (+5)

References

http://secunia.com/advisories/32187
http://securitytracker.com/id?1021013
http://www.cisco.com/en/US/products/products_security_response09186a0080a0d861.html
http://www.securityfocus.com/bid/31642
http://www.voipshield.com/research-details.php?id=128
http://www.vupen.com/english/advisories/2008/2771
https://exchange.xforce.ibmcloud.com/vulnerabilities/45743
http://secunia.com/advisories/32187
http://securitytracker.com/id?1021013
http://www.cisco.com/en/US/products/products_security_response09186a0080a0d861.html
http://www.securityfocus.com/bid/31642
http://www.voipshield.com/research-details.php?id=128

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