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CVE-2005-4783

11
FAUCET Score

CVE-2005-4783 describes a local information disclosure vulnerability in NetBSD, specifically affecting versions prior to 20050831. The kernfs_xread function in kernfs_vnops.c fails to validate negative offsets when reading the message buffer, enabling local users to read arbitrary kernel memory. This vulnerability has a low severity CVSS score of 2.1, indicating a low attack complexity and requiring local access, with the primary impact being confidentiality (reading kernel memory). 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
1.6CPE matchmatch criteria
cpe:2.3:o:netbsd:netbsd:1.6:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:o:netbsd:netbsd:2.0:*:*:*:*:*:*:*
2.0.3CPE matchmatch criteria
cpe:2.3:o:netbsd:netbsd:2.0.3:*:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:o:netbsd:netbsd:2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 23rd percentile among its peer group of 2,096 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 0.6 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

cvsweb.netbsd.org / bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c
Patch
cvsweb.netbsd.org / bsdweb.cgi/src/sys/miscfs/kernfs/kernfs_vnops.c.diff
Patch
mail-index.netbsd.org / netbsd-announce/2005/10/31/0000.html
releng.netbsd.org / cgi-bin/req-3.cgi
Patch
securitytracker.com / id
Patch
osvdb.org / 20729
Patch
packetstormsecurity.org / 0601-advisories/NetBSD-SA2006-001.txt
Patch