CVE-2007-1306

CVE-2007-1306 is a high-severity vulnerability in Digium Asterisk with a CVSS 2.0 base score of 7.8. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Asterisk 1.4 before 1.4.1 and 1.2 before 1.2.16 allows remote attackers to cause a denial of service (crash) by sending a Session Initiation Protocol (SIP) packet without a URI and SIP-version header, which results in a NULL pointer dereference.

Frequently asked questions

What is CVE-2007-1306?
Asterisk 1.4 before 1.4.1 and 1.2 before 1.2.16 allows remote attackers to cause a denial of service (crash) by sending a Session Initiation Protocol (SIP) packet without a URI and SIP-version header, which results in a NULL pointer dereference.
How severe is CVE-2007-1306?
CVE-2007-1306 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2007-1306 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1306?
CVE-2007-1306 primarily affects Digium Asterisk. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-1306?
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-2007-1306 published?
CVE-2007-1306 was published on 2007-03-07 and last updated on 2026-06-16.

References

Affected products (18)

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