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-2007-0427

51
FAUCET Score

CVE-2007-0427 describes a stack-based buffer overflow in Microsoft Help Workshop 4.03.0002, allowing user-assisted remote attackers to execute arbitrary code through a specially crafted .HPJ file with a long HLP field. This vulnerability carries a critical CVSS score of 9.3, indicating a network-based attack with medium complexity that can lead to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
4.03.0002CPE matchmatch criteria
cpe:2.3:a:microsoft:html_help_workshop:4.03.0002:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
30.96%
Probability of exploitation in next 30 days
EPSS Percentile
98.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-3159 · Jan 19, 2007
This CVE's current EPSS score of 0.3096 is in the 93rd percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

osvdb.org / 31899
secunia.com / advisories/23862
securityreason.com / securityalert/2177
anspi.pl / ~porkythepig/visualization/hpj-x01.cpp
Exploit
securityfocus.com / archive/1/457436/100/0/threaded
securityfocus.com / bid/22135
Exploit