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-2009-1935

15
FAUCET Score

CVE-2009-1935 describes an integer overflow vulnerability in the pipe_build_write_buffer function within the pipe implementation of FreeBSD versions 6.3 through 6.4 and 7.1 through 7.2. This flaw, located in the direct write optimization feature, allows a local attacker to bypass virtual-to-physical address lookups. The vulnerability has a CVSS score of 4.9, indicating a low severity, and could lead to the disclosure of sensitive information from memory pages (C:C). There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:6.3:*:*:*:*:*:*:*
6.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:6.3:release_p10:*:*:*:*:*:*
6.3_relengCPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:6.3_releng:*:*:*:*:*:*:*
6.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:6.4:*:*:*:*:*:*:*
6.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:6.4:release_p4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
35.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 66th percentile among its peer group of 3,052 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, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

osvdb.org / 55044
secunia.com / advisories/35398
Vendor Advisory
security.freebsd.org / advisories/FreeBSD-SA-09:09.pipe.asc
PatchVendor Advisory
security.freebsd.org / patches/SA-09:09/pipe.patch
ExploitVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/51109
securityfocus.com / bid/35279
securitytracker.com / id