CVE-2003-0985

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

The mremap system call (do_mremap) in Linux kernel 2.4.x before 2.4.21, and possibly other versions before 2.4.24, does not properly perform bounds checks, which allows local users to cause a denial of service and possibly gain privileges by causing a remapping of a virtual memory area (VMA) to create a zero length VMA, a different vulnerability than CAN-2004-0077.

CVSS v3
—
EG Score
0.0(none)
EPSS
65.5%
KEV
Not listed

Published

January 20, 2004

Last Modified

June 16, 2026

References (92)

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:2.4.21-4.0.2.EL2004-01-07redhat
redhatpatch2004-01-05redhat
redhatpatch2004-01-05redhat
redhatpatch2004-01-05redhat

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.

All Vendor Advisories

(4)

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 3× in last 7d / 26× 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.

  1. 2026-07-11 08:22 UTCEPSS rescore
  2. 2026-07-11 08:22 UTCEPSS rescore
  3. 2026-07-08 15:09 UTCEPSS rescore
  4. 2026-07-06 02:19 UTCEPSS rescore
  5. 2026-07-04 06:26 UTCEPSS rescore
  6. 2026-07-02 14:00 UTCEPSS rescore
  7. 2026-06-29 14:02 UTCEPSS rescore
  8. 2026-06-29 14:02 UTCEPSS rescore
  9. 2026-06-28 14:02 UTCEPSS rescore
  10. 2026-06-28 04:52 UTCEPSS rescore
  11. 2026-06-27 03:04 UTCEPSS rescore
  12. 2026-06-23 21:29 UTCEPSS rescore
  13. 2026-06-22 14:22 UTCEPSS rescore
  14. 2026-06-21 14:52 UTCEPSS rescore
  15. 2026-06-21 01:56 UTCEPSS rescore
  16. 2026-06-19 19:22 UTCEPSS rescore
  17. 2026-06-19 19:22 UTCEPSS rescore
  18. 2026-06-18 17:49 UTCEPSS rescore
  19. 2026-06-18 17:49 UTCEPSS rescore
  20. 2026-06-17 17:49 UTCEPSS rescore
  21. 2026-06-17 17:49 UTCEPSS rescore
  22. 2026-06-16 17:49 UTCEPSS rescore
  23. 2026-06-16 17:49 UTCEPSS rescore
  24. 2026-06-15 17:43 UTCEPSS rescore
  25. 2026-06-14 23:13 UTCEPSS rescore
Show 39 more
  1. 2026-06-14 23:13 UTCEPSS rescore
  2. 2026-06-13 22:56 UTCEPSS rescore
  3. 2026-06-12 23:08 UTCEPSS rescore
  4. 2026-06-11 13:55 UTCEPSS rescore
  5. 2026-06-10 22:13 UTCEPSS rescore
  6. 2026-06-10 13:17 UTCEPSS rescore
  7. 2026-06-08 14:13 UTCEPSS rescore
  8. 2026-06-07 15:21 UTCEPSS rescore
  9. 2026-06-06 13:44 UTCEPSS rescore
  10. 2026-06-06 13:44 UTCEPSS rescore
  11. 2026-06-06 13:44 UTCEPSS rescore
  12. 2026-06-05 22:43 UTCEPSS rescore
  13. 2026-06-05 22:43 UTCEPSS rescore
  14. 2026-06-05 06:07 UTCEPSS rescore
  15. 2026-06-04 13:09 UTCEPSS rescore
  16. 2026-06-02 20:10 UTCEPSS rescore
  17. 2026-06-01 13:49 UTCEPSS rescore
  18. 2026-06-01 13:49 UTCEPSS rescore
  19. 2026-05-31 22:28 UTCEPSS rescore
  20. 2026-05-31 16:39 UTCEG score recompute
  21. 2026-05-31 16:39 UTCVendor advisory
  22. 2026-05-31 16:39 UTCGHSA enrichment
  23. 2026-05-31 00:13 UTCEPSS rescore
  24. 2026-05-31 00:13 UTCEPSS rescore
  25. 2026-05-29 13:40 UTCEPSS rescore
  26. 2026-05-29 13:40 UTCEPSS rescore
  27. 2026-05-28 13:42 UTCEPSS rescore
  28. 2026-05-28 13:42 UTCEPSS rescore
  29. 2026-05-28 13:42 UTCEPSS rescore
  30. 2026-05-27 13:37 UTCEPSS rescore
  31. 2026-05-26 13:41 UTCEPSS rescore
  32. 2026-05-26 13:41 UTCEPSS rescore
  33. 2026-05-24 16:42 UTCEPSS rescore
  34. 2026-05-22 21:15 UTCEPSS rescore
  35. 2026-05-20 22:36 UTCEPSS rescore
  36. 2026-05-20 11:20 UTCEPSS rescore
  37. 2026-05-20 11:20 UTCEPSS rescore
  38. 2026-05-18 21:29 UTCEPSS rescore
  39. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-145✓ verified
    First seen Jan 15, 2004

    Linux Kernel 2.4.23/2.6.0 - 'do_mremap()' Bound Checking Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-142✓ verified
    First seen Jan 7, 2004

    Linux Kernel 2.4.23/2.6.0 - 'do_mremap()' Bound Checking Validator (2)

    Open source ↗
  • Exploit-DBEDB-141✓ verified
    First seen Jan 6, 2004

    Linux Kernel 2.4.23/2.6.0 - 'do_mremap()' Bound Checking Validator (1)

    Open source ↗

Frequently asked(4)

What is CVE-2003-0985?
CVE-2003-0985 is a none vulnerability published on January 20, 2004. The mremap system call (do_mremap) in Linux kernel 2.4.x before 2.4.21, and possibly other versions before 2.4.24, does not properly perform bounds checks, which allows local users to cause a denial of service and possibly gain privileges by causing a remapping of a virtual memory area (VMA) to…
When was CVE-2003-0985 disclosed?
CVE-2003-0985 was first published in the National Vulnerability Database on January 20, 2004, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2003-0985 actively exploited?
CVE-2003-0985 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 65.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2003-0985?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-0985, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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