CVE-2007-2488

CVE-2007-2488 is a critical-severity vulnerability in Asterisk with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss of transmitted data, and possibly obtain sensitive information (memory contents) or cause a denial of service (application crash), by sending a frame that lacks a 0 byte.

Frequently asked questions

What is CVE-2007-2488?
The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss of transmitted data, and possibly obtain sensitive information (memory contents) or cause a denial of service (application crash), by sending a frame that lacks a 0 byte.
How severe is CVE-2007-2488?
CVE-2007-2488 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2007-2488 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2488?
CVE-2007-2488 affects Asterisk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-2488?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-2488 published?
CVE-2007-2488 was published on 2007-05-07 and last updated on 2026-06-16.

References

Affected products (1)

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