How severe is CVE-2007-3564?

CVE-2007-3564 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2007-3564 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3564?

CVE-2007-3564 primarily affects Libcurl. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3564?

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-2007-3564 published?

CVE-2007-3564 was published on 2007-07-18 and last updated on 2026-06-16.

CVE-2007-3564

CVE-2007-3564 is a high-severity vulnerability in Libcurl with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Libcurl
Published: 2007-07-18
Last modified: 2026-06-16

Description

libcurl 7.14.0 through 7.16.3, when built with GnuTLS support, does not check SSL/TLS certificate expiration or activation dates, which allows remote attackers to bypass certain access restrictions.

Frequently asked questions

What is CVE-2007-3564?: libcurl 7.14.0 through 7.16.3, when built with GnuTLS support, does not check SSL/TLS certificate expiration or activation dates, which allows remote attackers to bypass certain access restrictions.
How severe is CVE-2007-3564?: CVE-2007-3564 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2007-3564 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3564?: CVE-2007-3564 primarily affects Libcurl. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3564?: 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-2007-3564 published?: CVE-2007-3564 was published on 2007-07-18 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:libcurl:libcurl:7.14:*:*:*:*:*:*:*
cpe:2.3:a:libcurl:libcurl:7.14.1:*:*:*:*:*:*:*
cpe:2.3:a:libcurl:libcurl:7.15:*:*:*:*:*:*:*
cpe:2.3:a:libcurl:libcurl:7.15.1:*:*:*:*:*:*:*
cpe:2.3:a:libcurl:libcurl:7.15.2:*:*:*:*:*:*:*
cpe:2.3:a:libcurl:libcurl:7.15.3:*:*:*:*:*:*:*
cpe:2.3:a:libcurl:libcurl:7.16.3:*:*:*:*:*:*:*

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