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CVE-2007-4145

22
FAUCET Score

CVE-2007-4145 describes a heap-based buffer overflow vulnerability in the BlueSkychat ActiveX control (v2.ocx) version 8.1.2.0 and earlier. This flaw allows remote attackers to execute arbitrary code by supplying a lengthy string to the ConnecttoServer method. While the CVSS score is 4.3 (medium severity), indicating a network-based attack with medium complexity and potential for partial impact, its FAUCET Risk Score is high at 82/100. Although not listed in CISA's KEV catalog, public exploit code exists on ExploitDB, suggesting potential for exploitation, despite a lack of broader community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.1.2.0CPE matchmatch criteria
cpe:2.3:a:bluesky:blueskychat:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.30%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-30441 · Jul 31, 2007
This CVE's current EPSS score of 0.0530 is in the 90th percentile among its peer group of 19,955 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 0.2 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

codeaudit.blogspot.com
lists.grok.org.uk / pipermail/full-disclosure/2007-July/064995.html
securityreason.com / securityalert/2959
exchange.xforce.ibmcloud.com / vulnerabilities/35699
securityfocus.com / archive/1/475150/100/0/threaded
securityfocus.com / bid/25149
Exploit
vulnhunt.com / advisories/CAL-20070730-1_BlueSkyCat_v2.ocx_ActiveX_remote_heap_overflow_vulnerability_en.txt