CVE-2005-4794: Cisco Application And Content Networking Software

Medium severity, CVSS 5.0. EPSS: 2.4% chance of exploitation in the next 30 days.

Cisco IP Phones 7902/7905/7912, ATA 186/188, Unity Express, ACNS, and Subscriber Edge Services Manager (SESM) allows remote attackers to cause a denial of service (crash or instability) via a compressed DNS packet with a label length byte with an incorrect offset.

Affected products

• Cisco Application And Content Networking Software: any version
• Cisco Ata: version 186 only; version 188 only
• Cisco IP Phone 7902: any version
• Cisco IP Phone 7905: any version
• Cisco IP Phone 7912: any version
• Cisco Subscriber Edge Services Manager: any version
• Cisco Unity Express: any version

Published 2005-12-31. Last modified 2026-06-16.