CVE-2007-1561

CVE-2007-1561 is a high-severity vulnerability in Asterisk with a CVSS 2.0 base score of 7.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

The channel driver 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 INVITE message with an SDP containing one valid and one invalid IP address.

Frequently asked questions

What is CVE-2007-1561?
The channel driver 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 INVITE message with an SDP containing one valid and one invalid IP address.
How severe is CVE-2007-1561?
CVE-2007-1561 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2007-1561 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1561?
CVE-2007-1561 primarily affects Asterisk. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-1561?
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-2007-1561 published?
CVE-2007-1561 was published on 2007-03-21 and last updated on 2026-06-16.

References

Affected products (4)

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