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7.8

Grandstream HT-488 can crash from packet flood

CVE-2007-5789 · published 19 years ago
Summary

The Grandstream HT-488 analog telephone adapter can stop working if an attacker sends a large number of split network messages to its SIP port (5060). This overload can cause the device to restart or become unresponsive, interrupting phone service. To protect it, update the firmware to the latest version and consider restricting access to SIP ports from untrusted networks.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
grandstream ht488 0.1
cpe:2.3:h:grandstream:ht488:0.1:*:*:*:*:*:*:*
Original advisory text
The Grandstream HT-488 0.1 allows remote attackers to cause a denial of service (device crash) via a flood of fragmented packets to port 5060.
The Grandstream HT-488 0.1 allows remote attackers to cause a denial of service (device crash) via a flood of fragmented packets to port 5060.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.8 High
Exploitation
2% chance of attack within 30 days
Timeline
Published1 Nov 2007
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2007-5789 · NVD
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