CVE-2007-1594

CVE-2007-1594 is a high-severity vulnerability in Asterisk 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

The handle_response function in chan_sip.c in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote attackers to cause a denial of service (crash) via a SIP Response code 0 in a SIP packet.

Frequently asked questions

What is CVE-2007-1594?
The handle_response function in chan_sip.c in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote attackers to cause a denial of service (crash) via a SIP Response code 0 in a SIP packet.
How severe is CVE-2007-1594?
CVE-2007-1594 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2007-1594 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1594?
CVE-2007-1594 primarily affects Asterisk. In total, 37 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-1594?
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-2007-1594 published?
CVE-2007-1594 was published on 2007-03-22 and last updated on 2026-06-16.

References

Affected products (37)

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