Certain USB drivers in the Linux 2.4 kernel use the copy_to_user function on uninitialized structures, which could allow local users to obtain sensitive information by reading memory that was not cleared from previous usage.
CVE-2004-0685
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.6 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:L/Au:N/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 0.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 4.6MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 4.6(low)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity46% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 39%
- KEV
- Not listed
Published
December 23, 2004
Last Modified
June 16, 2026
References (38)
- cve@mitrehttp://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=127921
- cve@mitrehttp://secunia.com/advisories/20162
- cve@mitrehttp://secunia.com/advisories/20163
- cve@mitrehttp://secunia.com/advisories/20202
- cve@mitrehttp://secunia.com/advisories/20338
- cve@mitrehttp://www.debian.org/security/2006/dsa-1067
- cve@mitrehttp://www.debian.org/security/2006/dsa-1069
- cve@mitrehttp://www.debian.org/security/2006/dsa-1070
- cve@mitrehttp://www.debian.org/security/2006/dsa-1082
- cve@mitrehttp://www.gentoo.org/security/en/glsa/glsa-200408-24.xml
- cve@mitrehttp://www.kb.cert.org/vuls/id/981134
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2004-504.html
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2004-505.html
- cve@mitrehttp://www.securityfocus.com/bid/10892
- cve@mitrehttp://www.securityspace.com/smysecure/catid.html?id=14580
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | patch | 2004-12-13 | redhat |
| redhat | patch | 2004-12-13 | redhat |
| redhat | kernel-0:2.4.21-20.0.1.EL | 2004-12-02 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(6 across 1 ecosystem)
Debian:3.0(6)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| kernel-image-sparc-2.4 | 26 | 26woody1 | — |
| kernel-patch-2.4.19-mips | 2.4.19-0.020911.1.woody4 | 2.4.19-0.020911.1.woody5 | — |
| kernel-source-2.4.16 | — | 2.4.16-1woody2 | — |
| kernel-source-2.4.17 | 2.4.17-1woody3 | 2.4.17-1woody4 | — |
| kernel-source-2.4.18 | 2.4.18-14.3 | 2.4.18-14.4 | — |
| kernel-source-2.4.19 | 2.4.19-4.woody2 | 2.4.19-4.woody3 | — |
All Vendor Advisories
(3)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 0× in last 7d / 3× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-12 14:54 UTCEPSS rescore
- 2026-09-10 09:23 UTCEPSS rescore
- 2026-08-30 01:13 UTCEPSS rescore
- 2026-07-26 13:24 UTCEG score recompute▲ 4.60
- 2026-07-25 14:11 UTCEPSS rescore
- 2026-07-24 14:11 UTCEPSS rescore
- 2026-07-23 00:46 UTCEG score recompute
- 2026-07-23 00:27 UTCEG score recompute
- 2026-07-22 23:50 UTCEG score recompute
- 2026-07-22 21:30 UTCEG score recompute
- 2026-07-20 17:02 UTCEPSS rescore
- 2026-07-19 14:25 UTCEPSS rescore
- 2026-07-18 09:59 UTCEPSS rescore
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- 2026-06-29 14:02 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 15:35 UTCEG score recompute
- 2026-05-31 15:35 UTCVendor advisory
- 2026-05-31 15:35 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-20 22:36 UTCEPSS rescore
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- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Related CVEs(same product + same vendor)
Same product
10 shownDebian:3.0:kernel-image-sparc-2.4
Same vendor
10 shownredhat:RHSA-2004:504 · redhat:RHSA-2004:549
Frequently asked(4)
What is CVE-2004-0685?
When was CVE-2004-0685 disclosed?
Is CVE-2004-0685 actively exploited?
How do I remediate CVE-2004-0685?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2004-0685
Is Your Infrastructure Affected by CVE-2004-0685?
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