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CVE-2006-6131

25
FAUCET Score

CVE-2006-6131 describes an untrusted search path vulnerability in Kerio WebSTAR (4D WebSTAR Server Suite) versions 5.4.2 and earlier, specifically impacting the WSAdminServer and WSWebServer components. This flaw allows local users with webstar privileges to escalate to root privileges by introducing a malicious libucache.dylib helper library into the current working directory. The vulnerability carries a CVSS score of 6.2 (medium severity), indicating a local attack vector with high attack complexity, but with complete confidentiality, integrity, and availability impacts. While not listed in CISA's KEV catalog or showing active exploitation, public exploit code exists on ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.4.2CPE matchmatch criteria
cpe:2.3:a:kerio:webstar:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:kerio:webstar:4.0:*:*:*:*:*:*:*
5.1.2CPE matchmatch criteria
cpe:2.3:a:kerio:webstar:5.1.2:*:*:*:*:*:*:*
5.1.3CPE matchmatch criteria
cpe:2.3:a:kerio:webstar:5.1.3:*:*:*:*:*:*:*
5.2CPE matchmatch criteria
cpe:2.3:a:kerio:webstar:5.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.2MEDIUM

AV:L/AC:H/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-2788 · Nov 15, 2006
This CVE's current EPSS score of 0.0088 is in the 89th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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

Remediation records are not available for this CVE.

References

secunia.com / advisories/22906
ExploitVendor Advisory
securityreason.com / securityalert/1921
securitytracker.com / id
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/30308
digitalmunition.com / DMA%5B2006-1115a%5D.txt
osvdb.org / 30450
Exploit
securityfocus.com / archive/1/451832/100/200/threaded
securityfocus.com / bid/21123
Exploit
vupen.com / english/advisories/2006/4539