CVE-2003-1604

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-04-29. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The redirect_target function in net/ipv4/netfilter/ipt_REDIRECT.c in the Linux kernel before 2.6.0 allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending packets to an interface that has a 0.0.0.0 IP address, a related issue to CVE-2015-8787.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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 computed
Severity75% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

May 2, 2016

Last Modified

June 16, 2026

Advisory Details (3)

Auto-updated Jul 24, 2026
No patch confirmed yet. Sources: redhat.
redhat

1303072 – (CVE-2003-1604) CVE-2003-1604 kernel: Missing NULL pointer check in nf_nat_redirect_ipv4

https://bugzilla.redhat.com/show_bug.cgi?id=1303072
generic

oss-security - Re: CVE Request: Linux: NULL pointer dereference netfilter/nf_nat_redirect.c in nf_nat_redirect_ipv4 function

http://www.openwall.com/lists/oss-security/2016/01/27/9
generic

'[PATCH] Fix possible oops in ipt_REDIRECT' - MARC

http://marc.info/?l=netfilter-devel&m=106668497403047&w=2

Data Freshness Timeline

(refreshed 0× in last 7d / 5× 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. 2026-07-25 14:11 UTCEPSS rescore
  2. 2026-07-24 14:11 UTCEPSS rescore
  3. 2026-07-23 00:45 UTCEG score recompute
  4. 2026-07-23 00:27 UTCEG score recompute
  5. 2026-07-22 23:50 UTCEG score recompute
  6. 2026-07-22 21:30 UTCEG score recompute
  7. 2026-07-20 17:02 UTCEPSS rescore
  8. 2026-07-19 14:25 UTCEPSS rescore
  9. 2026-07-18 09:59 UTCEPSS rescore
  10. 2026-07-18 09:59 UTCEPSS rescore
  11. 2026-07-16 16:58 UTCEPSS rescore
  12. 2026-07-15 01:55 UTCEPSS rescore
  13. 2026-07-15 01:55 UTCEPSS rescore
  14. 2026-07-11 08:22 UTCEPSS rescore
  15. 2026-07-11 08:22 UTCEPSS rescore
  16. 2026-07-08 15:09 UTCEPSS rescore
  17. 2026-07-06 02:19 UTCEPSS rescore
  18. 2026-07-04 06:26 UTCEPSS rescore
  19. 2026-07-02 14:00 UTCEPSS rescore
  20. 2026-06-29 14:02 UTCEPSS rescore
  21. 2026-06-29 14:02 UTCEPSS rescore
  22. 2026-06-28 14:02 UTCEPSS rescore
  23. 2026-06-28 04:52 UTCEPSS rescore
  24. 2026-06-27 03:04 UTCEPSS rescore
  25. 2026-06-23 21:29 UTCEPSS rescore
Show 51 more
  1. 2026-06-22 14:22 UTCEPSS rescore
  2. 2026-06-21 14:52 UTCEPSS rescore
  3. 2026-06-21 01:56 UTCEPSS rescore
  4. 2026-06-18 17:49 UTCEPSS rescore
  5. 2026-06-18 17:49 UTCEPSS rescore
  6. 2026-06-17 17:49 UTCEPSS rescore
  7. 2026-06-17 17:49 UTCEPSS rescore
  8. 2026-06-16 17:49 UTCEPSS rescore
  9. 2026-06-16 17:49 UTCEPSS rescore
  10. 2026-06-15 17:43 UTCEPSS rescore
  11. 2026-06-14 23:13 UTCEPSS rescore
  12. 2026-06-14 23:13 UTCEPSS rescore
  13. 2026-06-13 22:56 UTCEPSS rescore
  14. 2026-06-12 23:08 UTCEPSS rescore
  15. 2026-06-11 13:55 UTCEPSS rescore
  16. 2026-06-10 22:13 UTCEPSS rescore
  17. 2026-06-10 13:17 UTCEPSS rescore
  18. 2026-06-08 14:13 UTCEPSS rescore
  19. 2026-06-07 15:21 UTCEPSS rescore
  20. 2026-06-06 13:44 UTCEPSS rescore
  21. 2026-06-06 13:44 UTCEPSS rescore
  22. 2026-06-06 13:44 UTCEPSS rescore
  23. 2026-06-05 22:43 UTCEPSS rescore
  24. 2026-06-05 22:43 UTCEPSS rescore
  25. 2026-06-05 06:07 UTCEPSS rescore
  26. 2026-06-04 13:09 UTCEPSS rescore
  27. 2026-06-02 20:10 UTCEPSS rescore
  28. 2026-06-01 13:49 UTCEPSS rescore
  29. 2026-06-01 13:49 UTCEPSS rescore
  30. 2026-05-31 22:28 UTCEPSS rescore
  31. 2026-05-31 00:13 UTCEPSS rescore
  32. 2026-05-31 00:13 UTCEPSS rescore
  33. 2026-05-29 13:40 UTCEPSS rescore
  34. 2026-05-29 13:40 UTCEPSS rescore
  35. 2026-05-28 13:42 UTCEPSS rescore
  36. 2026-05-28 13:42 UTCEPSS rescore
  37. 2026-05-28 13:42 UTCEPSS rescore
  38. 2026-05-27 13:37 UTCEPSS rescore
  39. 2026-05-26 13:41 UTCEPSS rescore
  40. 2026-05-26 13:41 UTCEPSS rescore
  41. 2026-05-26 07:16 UTCEPSS rescore
  42. 2026-05-26 07:16 UTCEPSS rescore
  43. 2026-05-24 16:42 UTCEPSS rescore
  44. 2026-05-22 21:15 UTCEPSS rescore
  45. 2026-05-22 20:32 UTCEG score recompute
  46. 2026-05-22 20:32 UTCGHSA enrichment
  47. 2026-05-20 22:36 UTCEPSS rescore
  48. 2026-05-20 11:20 UTCEPSS rescore
  49. 2026-05-20 11:20 UTCEPSS rescore
  50. 2026-05-18 21:29 UTCEPSS rescore
  51. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(5)

What is CVE-2003-1604?
CVE-2003-1604 is a high vulnerability published on May 2, 2016. The redirecttarget function in net/ipv4/netfilter/iptREDIRECT.c in the Linux kernel before 2.6.0 allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending packets to an interface that has a 0.0.0.0 IP address, a related issue to CVE-2015-8787.
When was CVE-2003-1604 disclosed?
CVE-2003-1604 was first published in the National Vulnerability Database on May 2, 2016, 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-2003-1604 actively exploited?
CVE-2003-1604 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 11.0% of all scored CVEs.
What is the CVSS score of CVE-2003-1604?
CVE-2003-1604 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2003-1604?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-1604, 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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