How severe is CVE-2009-0037?

CVE-2009-0037 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2009-0037 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0037?

CVE-2009-0037 primarily affects Curl. In total, 80 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0037?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-0037 published?

CVE-2009-0037 was published on 2009-03-05 and last updated on 2026-06-16.

CVE-2009-0037

CVE-2009-0037 is a medium-severity vulnerability in Curl with a CVSS 2.0 base score of 6.8. 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-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Curl
Published: 2009-03-05
Last modified: 2026-06-16

Description

The redirect implementation in curl and libcurl 5.11 through 7.19.3, when CURLOPT_FOLLOWLOCATION is enabled, accepts arbitrary Location values, which might allow remote HTTP servers to (1) trigger arbitrary requests to intranet servers, (2) read or overwrite arbitrary files via a redirect to a file: URL, or (3) execute arbitrary commands via a redirect to an scp: URL.

Frequently asked questions

What is CVE-2009-0037?: The redirect implementation in curl and libcurl 5.11 through 7.19.3, when CURLOPT_FOLLOWLOCATION is enabled, accepts arbitrary Location values, which might allow remote HTTP servers to (1) trigger arbitrary requests to intranet servers, (2) read or overwrite arbitrary files via a redirect to a file: URL, or (3) execute arbitrary commands via a redirect to an scp: URL.
How severe is CVE-2009-0037?: CVE-2009-0037 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2009-0037 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0037?: CVE-2009-0037 primarily affects Curl. In total, 80 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0037?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-0037 published?: CVE-2009-0037 was published on 2009-03-05 and last updated on 2026-06-16.

References

Affected products (80)

cpe:2.3:a:curl:curl:5.11:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.0:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.1beta:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.3:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.3.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.4:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.5:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:6.5.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.1.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.2.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.3:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.4:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.4.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.5:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.5.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.5.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.6:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.6.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.7:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.7.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.7.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.7.3:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.8:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.8.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.8.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.1:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.2:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.3:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.4:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.5:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.6:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.7:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.9.8:*:*:*:*:*:*:*
cpe:2.3:a:curl:curl:7.10:*:*:*:*:*:*:*

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