LiveActive security incident?Get immediate response
CVE Record

CVE-2005-4783: kernfs_xread in kernfs_vnops.c in NetBSD before 20050831 does not check for a negative offset when reading...

kernfs_xread in kernfs_vnops.c in NetBSD before 20050831 does not check for a negative offset when reading the message buffer, which allows local users to read arbitrary kernel memory.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is an old NetBSD kernel information-disclosure flaw. A local user could abuse a missing negative-offset check in kernfs to read arbitrary kernel memory. The main business risk is exposure of sensitive kernel-resident data on legacy NetBSD systems, not remote compromise from the internet. Exposure is most likely on legacy NetBSD installations or embedded systems derived from NetBSD source before 20050831, especially where untrusted local users can access kernfs-related interfaces. Treat this as a targeted legacy-platform risk. It is not described as remotely exploitable, but affected systems with local users could leak sensitive kernel memory and should be updated or retired. Mitigation focus: Identify any NetBSD systems or NetBSD-derived appliances in scope.; Update to a NetBSD build containing the post-20050831 kernfs fix.; Review NetBSD-SA2006-001 and vendor downstream guidance before remediation..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2005-4783 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.