How severe is CVE-2012-5580?

CVE-2012-5580 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2012-5580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5580?

CVE-2012-5580 affects Libproxy Project Libproxy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-5580?

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-2012-5580 published?

CVE-2012-5580 was published on 2014-10-27 and last updated on 2026-06-16.

CVE-2012-5580

CVE-2012-5580 is a high-severity vulnerability in Libproxy Project Libproxy 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. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Libproxy Project Libproxy
Published: 2014-10-27
Last modified: 2026-06-16

Description

Format string vulnerability in the print_proxies function in bin/proxy.c in libproxy 0.3.1 might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in a proxy name, as demonstrated using the http_proxy environment variable or a PAC file.

Frequently asked questions

What is CVE-2012-5580?: Format string vulnerability in the print_proxies function in bin/proxy.c in libproxy 0.3.1 might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in a proxy name, as demonstrated using the http_proxy environment variable or a PAC file.
How severe is CVE-2012-5580?: CVE-2012-5580 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2012-5580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5580?: CVE-2012-5580 affects Libproxy Project Libproxy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-5580?: 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-2012-5580 published?: CVE-2012-5580 was published on 2014-10-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:libproxy_project:libproxy:0.3.1:*:*:*:*:*:*:*

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