Linux kernel 2.4.x and 2.6.x for x86 allows local users to cause a denial of service (system crash), possibly via an infinite loop that triggers a signal handler with a certain sequence of fsave and frstor instructions, as originally demonstrated using a "crash.c" program.
Conclusion & alert: CVE-2004-0554 is rated Exploit Available (50/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.64%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 306 | exploit_db | edb | 2004-06-25 | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-02-18 | 0.76% | 0.64% | -0.11% |
| 2 | 2026-01-01 | 0.66% | 0.76% | +0.09% |
| 3 | 2025-12-23 | — | 0.66% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
high | CVE-2004-0554: 1 GLSA(s) (200407-02), 36 atom(s) (sys-kernel/aa-sources, sys-kernel/alpha-sources, …); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2004-0554 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2004-0554 |
ubuntu
|
medium | CVE-2004-0554 medium priority: Ubuntu including 2 source packages (kernel-image-2.4.27-i386, kernel-source-2.4.27), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): released 4, DNE 2, needs-triage 2. | https://ubuntu.com/security/CVE-2004-0554 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| avaya | converged_communications_server | 2.0 | cpe:2.3:h:avaya:converged_communications_server:2.0:*:*:*:*:*:*:* |
| avaya | modular_messaging_message_storage_server | s3400 | cpe:2.3:o:avaya:modular_messaging_message_storage_server:s3400:*:*:*:*:*:*:* |
| gentoo | linux | 1.4 | cpe:2.3:o:gentoo:linux:1.4:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.18 | cpe:2.3:o:linux:linux_kernel:2.4.18:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.19 | cpe:2.3:o:linux:linux_kernel:2.4.19:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.21 | cpe:2.3:o:linux:linux_kernel:2.4.21:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.22 | cpe:2.3:o:linux:linux_kernel:2.4.22:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.23 | cpe:2.3:o:linux:linux_kernel:2.4.23:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.24 | cpe:2.3:o:linux:linux_kernel:2.4.24:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.25 | cpe:2.3:o:linux:linux_kernel:2.4.25:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.26 | cpe:2.3:o:linux:linux_kernel:2.4.26:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.0 | cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.1 | cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.1 | cpe:2.3:o:linux:linux_kernel:2.6.1:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.1 | cpe:2.3:o:linux:linux_kernel:2.6.1:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.2 | cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.3 | cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.4 | cpe:2.3:o:linux:linux_kernel:2.6.4:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.5 | cpe:2.3:o:linux:linux_kernel:2.6.5:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.6 | cpe:2.3:o:linux:linux_kernel:2.6.6:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.6 | cpe:2.3:o:linux:linux_kernel:2.6.6:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.7 | cpe:2.3:o:linux:linux_kernel:2.6.7:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.7 | cpe:2.3:o:linux:linux_kernel:2.6.7:rc1:*:*:*:*:*:* |
| redhat | enterprise_linux | 2.1 | cpe:2.3:o:redhat:enterprise_linux:2.1:*:advanced_server:*:*:*:*:* |
| redhat | enterprise_linux | 2.1 | cpe:2.3:o:redhat:enterprise_linux:2.1:*:enterprise_server:*:*:*:*:* |
| redhat | enterprise_linux | 2.1 | cpe:2.3:o:redhat:enterprise_linux:2.1:*:workstation:*:*:*:*:* |
| redhat | enterprise_linux | 3.0 | cpe:2.3:o:redhat:enterprise_linux:3.0:*:advanced_servers:*:*:*:*:* |
| redhat | enterprise_linux | 3.0 | cpe:2.3:o:redhat:enterprise_linux:3.0:*:enterprise_server:*:*:*:*:* |
| redhat | enterprise_linux | 3.0 | cpe:2.3:o:redhat:enterprise_linux:3.0:*:workstation:*:*:*:*:* |
| suse | suse_linux | 7 | cpe:2.3:o:suse:suse_linux:7:*:enterprise_server:*:*:*:*:* |
| suse | suse_linux | 8 | cpe:2.3:o:suse:suse_linux:8:*:enterprise_server:*:*:*:*:* |
| suse | suse_linux | 8.0 | cpe:2.3:o:suse:suse_linux:8.0:*:*:*:*:*:*:* |
| suse | suse_linux | 8.0 | cpe:2.3:o:suse:suse_linux:8.0:*:i386:*:*:*:*:* |
| suse | suse_linux | 8.1 | cpe:2.3:o:suse:suse_linux:8.1:*:*:*:*:*:*:* |
| suse | suse_linux | 8.2 | cpe:2.3:o:suse:suse_linux:8.2:*:*:*:*:*:*:* |
| suse | suse_linux | 9.0 | cpe:2.3:o:suse:suse_linux:9.0:*:*:*:*:*:*:* |
| suse | suse_linux | 9.0 | cpe:2.3:o:suse:suse_linux:9.0:*:x86_64:*:*:*:*:* |
| suse | suse_linux | 9.1 | cpe:2.3:o:suse:suse_linux:9.1:*:*:*:*:*:*:* |
| avaya | intuity_audix | — | cpe:2.3:a:avaya:intuity_audix:*:*:lx:*:*:*:*:* |
| suse | suse_email_server | 3.1 | cpe:2.3:a:suse:suse_email_server:3.1:*:*:*:*:*:*:* |
| suse | suse_email_server | iii | cpe:2.3:a:suse:suse_email_server:iii:*:*:*:*:*:*:* |
| suse | suse_linux_admin-cd_for_firewall | — | cpe:2.3:a:suse:suse_linux_admin-cd_for_firewall:*:*:*:*:*:*:*:* |
| suse | suse_linux_connectivity_server | — | cpe:2.3:a:suse:suse_linux_connectivity_server:*:*:*:*:*:*:*:* |
| suse | suse_linux_database_server | — | cpe:2.3:a:suse:suse_linux_database_server:*:*:*:*:*:*:*:* |
| suse | suse_linux_firewall_cd | — | cpe:2.3:a:suse:suse_linux_firewall_cd:*:*:*:*:*:*:*:* |
| suse | suse_linux_office_server | — | cpe:2.3:a:suse:suse_linux_office_server:*:*:*:*:*:*:*:* |
| suse | suse_office_server | — | cpe:2.3:a:suse:suse_office_server:*:*:*:*:*:*:*:* |
| avaya | s8300 | r2.0.0 | cpe:2.3:h:avaya:s8300:r2.0.0:*:*:*:*:*:*:* |
| avaya | s8300 | r2.0.1 | cpe:2.3:h:avaya:s8300:r2.0.1:*:*:*:*:*:*:* |
| avaya | s8500 | r2.0.0 | cpe:2.3:h:avaya:s8500:r2.0.0:*:*:*:*:*:*:* |
| avaya | s8500 | r2.0.1 | cpe:2.3:h:avaya:s8500:r2.0.1:*:*:*:*:*:*:* |
| avaya | s8700 | r2.0.0 | cpe:2.3:h:avaya:s8700:r2.0.0:*:*:*:*:*:*:* |
| avaya | s8700 | r2.0.1 | cpe:2.3:h:avaya:s8700:r2.0.1:*:*:*:*:*:*:* |
| conectiva | linux | 8.0 | cpe:2.3:o:conectiva:linux:8.0:*:*:*:*:*:*:* |
| conectiva | linux | 9.0 | cpe:2.3:o:conectiva:linux:9.0:*:*:*:*:*:*:* |