CVE-2011-1637: Cisco Skinny Client Control Protocol Software

Low severity, CVSS 1.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Cisco Unified IP Phones 7900 devices (aka TNP phones) with software before 9.2.1 do not properly verify signatures for software images, which allows local users to gain privileges via a crafted image, aka Bug ID CSCtn65962.

Affected products

• Cisco Skinny Client Control Protocol Software: up to and including 9.1\(1\); version 1.0(1) only; version 1.0(2) only; version 1.0(3) only; version 1.0(4) only; version 1.0(5) only; …
• Cisco Unified IP Phone 7906
• Cisco Unified IP Phone 7911g
• Cisco Unified IP Phone 7931g
• Cisco Unified IP Phone 7941g
• Cisco Unified IP Phone 7941g-Ge
• Cisco Unified IP Phone 7942g
• Cisco Unified IP Phone 7945g
• Cisco Unified IP Phone 7961g
• Cisco Unified IP Phone 7961g-Ge
• Cisco Unified IP Phone 7962g
• Cisco Unified IP Phone 7965g
• Cisco Unified IP Phone 7970g
• Cisco Unified IP Phone 7971g-Ge
• Cisco Unified IP Phone 7975g

Published 2011-06-02. Last modified 2026-06-16.