CVE-2007-4739

CVE-2007-4739 is a medium-severity vulnerability in Debian Reprepro with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Description

reprepro 1.3.0 through 2.2.3 does not properly verify signatures when updating repositories, which allows remote attackers to construct and distribute an ostensibly valid Release.gpg file by signing it with an unknown key, related to the update command.

Frequently asked questions

What is CVE-2007-4739?
reprepro 1.3.0 through 2.2.3 does not properly verify signatures when updating repositories, which allows remote attackers to construct and distribute an ostensibly valid Release.gpg file by signing it with an unknown key, related to the update command.
How severe is CVE-2007-4739?
CVE-2007-4739 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-4739 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4739?
CVE-2007-4739 primarily affects Debian Reprepro. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4739?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-4739 published?
CVE-2007-4739 was published on 2007-09-06 and last updated on 2026-06-16.

References

Affected products (8)

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