CVE-2006-1520

CVE-2006-1520 is a medium-severity vulnerability in Libspf with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Format string vulnerability in ANSI C Sender Policy Framework library (libspf) before 1.0.0-p5, when debugging is enabled, allows remote attackers to execute arbitrary code via format string specifiers, possibly in an e-mail address.

Frequently asked questions

What is CVE-2006-1520?
Format string vulnerability in ANSI C Sender Policy Framework library (libspf) before 1.0.0-p5, when debugging is enabled, allows remote attackers to execute arbitrary code via format string specifiers, possibly in an e-mail address.
How severe is CVE-2006-1520?
CVE-2006-1520 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2006-1520 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-1520?
CVE-2006-1520 affects Libspf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-1520?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-1520 published?
CVE-2006-1520 was published on 2006-05-22 and last updated on 2026-06-16.

References

Affected products (1)