Vulnerability record · CVE-2004-0554 · published 6 August 2004
CVE-2004-0554: Avaya converged communications server vulnerability
Avaya · Converged Communications Server
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.
Description
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.
AV:L/AC:L/Au:N/C:N/I:N/A:P
Affected products
18 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
Track CVE-2004-0554 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2004-0554), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.