How severe is CVE-2012-4556?

CVE-2012-4556 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2012-4556 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4556?

CVE-2012-4556 primarily affects Redhat Certificate System. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4556?

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

When was CVE-2012-4556 published?

CVE-2012-4556 was published on 2013-01-04 and last updated on 2026-06-16.

CVE-2012-4556

CVE-2012-4556 is a medium-severity vulnerability in Redhat Certificate System with a CVSS 2.0 base score of 4.0. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Redhat Certificate System
Published: 2013-01-04
Last modified: 2026-06-16

Description

The token processing system (pki-tps) in Red Hat Certificate System (RHCS) before 8.1.3 allows remote attackers to cause a denial of service (Apache httpd web server child process restart) via certain unspecified empty search fields in a user certificate search query.

Frequently asked questions

What is CVE-2012-4556?: The token processing system (pki-tps) in Red Hat Certificate System (RHCS) before 8.1.3 allows remote attackers to cause a denial of service (Apache httpd web server child process restart) via certain unspecified empty search fields in a user certificate search query.
How severe is CVE-2012-4556?: CVE-2012-4556 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2012-4556 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4556?: CVE-2012-4556 primarily affects Redhat Certificate System. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4556?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4556 published?: CVE-2012-4556 was published on 2013-01-04 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:redhat:certificate_system:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:certificate_system:7.1:*:*:*:*:*:*:*
cpe:2.3:a:redhat:certificate_system:7.2:*:*:*:*:*:*:*
cpe:2.3:a:redhat:certificate_system:7.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:certificate_system:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:certificate_system:8.1:*:*:*:*:*:*:*

More vulnerabilities in Redhat Certificate System

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