Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2012-4556

16
FAUCET Score

CVE-2012-4556 describes a denial-of-service vulnerability affecting the Red Hat Certificate System (RHCS) before version 8.1.3, specifically within its token processing system (pki-tps). An authenticated remote attacker can trigger an Apache httpd web server child process restart by submitting user certificate search queries with unspecified empty search fields. This vulnerability has a CVSS score of 4.0, indicating a low severity, as it requires authentication and only impacts availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.1.1CPE matchmatch criteria
cpe:2.3:a:redhat:certificate_system:*:*:*:*:*:*:*:*
7.1CPE matchmatch criteria
cpe:2.3:a:redhat:certificate_system:7.1:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:redhat:certificate_system:7.2:*:*:*:*:*:*:*
7.3CPE matchmatch criteria
cpe:2.3:a:redhat:certificate_system:7.3:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:redhat:certificate_system:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:L/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 79th percentile among its peer group of 21,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Certificate System 8Fixed in: pki-common-0:8.1.3-2.el5pki
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Certificate System 8Fixed in: pki-tps-0:8.1.3-2.el5pki
View patch

Vendor Advisories (1)

redhatCVE-2012-4556Low

pki-tps: Connection reset when performing empty certificate search in TPS

Dec 6, 2012

References

rhn.redhat.com / errata/RHSA-2012-1550.html
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/51482
Vendor Advisory
securityfocus.com / bid/56843
securitytracker.com / id