CVE-2009-1048: Snom 300 Firmware

Critical severity, CVSS 9.8. EPSS: 6.4% chance of exploitation in the next 30 days.

The web interface on the snom VoIP phones snom 300, snom 320, snom 360, snom 370, and snom 820 with firmware 6.5 before 6.5.20, 7.1 before 7.1.39, and 7.3 before 7.3.14 allows remote attackers to bypass authentication, and reconfigure the phone or make arbitrary use of the phone, via a (1) http or (2) https request with 127.0.0.1 in the Host header.

Affected products

• Snom Snom 300 Firmware: from 6.5, before 6.5.20 (fixed in 6.5.20); from 7.1, before 7.1.39 (fixed in 7.1.39); from 7.3, before 7.3.14 (fixed in 7.3.14)
• Snom Snom 320 Firmware: from 6.5, before 6.5.20 (fixed in 6.5.20); from 7.1, before 7.1.39 (fixed in 7.1.39); from 7.3, before 7.3.14 (fixed in 7.3.14)
• Snom Snom 360 Firmware: from 6.5, before 6.5.20 (fixed in 6.5.20); from 7.1, before 7.1.39 (fixed in 7.1.39); from 7.3, before 7.3.14 (fixed in 7.3.14)
• Snom Snom 370 Firmware: from 6.5, before 6.5.20 (fixed in 6.5.20); from 7.1, before 7.1.39 (fixed in 7.1.39); from 7.3, before 7.3.14 (fixed in 7.3.14)
• Snom Snom 820 Firmware: from 6.5, before 6.5.20 (fixed in 6.5.20); from 7.1, before 7.1.39 (fixed in 7.1.39); from 7.3, before 7.3.14 (fixed in 7.3.14)

Published 2009-08-14. Last modified 2026-06-16.