CVE-2007-1030

CVE-2007-1030 is a high-severity vulnerability in Niels Provos Libevent 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

Niels Provos libevent 1.2 and 1.2a allows remote attackers to cause a denial of service (infinite loop) via a DNS response containing a label pointer that references its own offset.

Frequently asked questions

What is CVE-2007-1030?
Niels Provos libevent 1.2 and 1.2a allows remote attackers to cause a denial of service (infinite loop) via a DNS response containing a label pointer that references its own offset.
How severe is CVE-2007-1030?
CVE-2007-1030 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2007-1030 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1030?
CVE-2007-1030 primarily affects Niels Provos Libevent. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-1030?
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-2007-1030 published?
CVE-2007-1030 was published on 2007-02-21 and last updated on 2026-06-16.

References

Affected products (2)