PatchTheCVECVE-2004-0685: Certain USB drivers in the Linux 2.4 kernel use the copy_to_user function on uninitialized structures, which c
CVE-2004-0685 is a medium-severity flaw (CVSS 4.6) affecting linux kernel, enterprise linux, enterprise linux desktop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.6 (Medium) |
| EPSS exploit chance | 0.5% (top 59%) |
| CISA exploited list | No |
| Published | 2004-12-23 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2004-0685?
linux kernel: mitigate or apply the listed mitigation; enterprise linux: mitigate or apply the listed mitigation; enterprise linux desktop: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2004-0685 being exploited?
CVE-2004-0685 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2004-0685 affect?
CVE-2004-0685 affects linux kernel, enterprise linux, enterprise linux desktop. Severity is medium (CVSS 4.6). 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.
How urgent is CVE-2004-0685?
Priority 31/100. On your watchlist
Software pages
Related CVEs
- CVE-2023-4194 MEDIUM 5.5 UPGRADE MITIGATE A flaw was found in the Linux kernel's TUN/TAP functionality
- CVE-2023-5197 HIGH 7.8 MITIGATE UPGRADE A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achiev
- CVE-2023-45862 MEDIUM 5.5 UPGRADE MITIGATE An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux kern
- CVE-2023-1077 HIGH 7.0 UPGRADE MITIGATE In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condit
- CVE-2022-36280 MEDIUM 6.3 UPGRADE MITIGATE An out-of-bounds(OOB) memory access vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_kms.