CVE-2006-5231

CVE-2006-5231 is a high-severity vulnerability in Grandstream Gxp-2000 with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Grandstream GXP-2000 VoIP Desktop Phone, firmware version 1.1.0.5, allows remote attackers to cause a denial of service (hang or reboot) via a large amount of ASCII data sent to port (1) 5060/UDP, (2) 5062/UDP, (3) 5064/UDP, (4) 5066/UDP, (5) 9876/UDP, or (6) 26789/UDP.

Frequently asked questions

What is CVE-2006-5231?
Grandstream GXP-2000 VoIP Desktop Phone, firmware version 1.1.0.5, allows remote attackers to cause a denial of service (hang or reboot) via a large amount of ASCII data sent to port (1) 5060/UDP, (2) 5062/UDP, (3) 5064/UDP, (4) 5066/UDP, (5) 9876/UDP, or (6) 26789/UDP.
How severe is CVE-2006-5231?
CVE-2006-5231 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2006-5231 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5231?
CVE-2006-5231 affects Grandstream Gxp-2000. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-5231?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-5231 published?
CVE-2006-5231 was published on 2006-10-11 and last updated on 2026-06-16.

References

Affected products (1)