The mxcsr code in Linux kernel 2.4 allows attackers to modify CPU state registers via a malformed address.
Priority MEDIUM 49Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The mxcsr code in Linux kernel 2.4 allows attackers to modify CPU state registers via a malformed address.
Why it matters now
EPSS 0.03723 89th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:linux:7.1:*:*:*:*:*:*:* | 7.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:linux:7.2:*:*:*:*:*:*:* | 7.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:linux:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:linux:9.0:*:i386:*:*:*:*:* | 9.0 | Vulnerable | Red Hat |
- cpe:2.3:o:redhat:linux:7.1:*:*:*:*:*:*:* Versions 7.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:linux:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:linux:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:linux:9.0:*:i386:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
Remediation
Red Hat 2 advisories
- RHSA-2003:195 Released 2003-06-19 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- RHSA-2003:187 Released 2003-06-03 · Red Hat rating Important: Updated 2.4 kernel fixes vulnerabilities and driver bugs
- Red Hat Linux 7.1
- Red Hat Linux 7.2
- Red Hat Linux 7.3
- Red Hat Linux 8.0
- Red Hat Linux 9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2003:195 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2003:195 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2003:195 |
| Red Hat Linux 7.1 | Fixed | RHSA-2003:187 |
| Red Hat Linux 7.2 | Fixed | RHSA-2003:187 |
| Red Hat Linux 7.3 | Fixed | RHSA-2003:187 |
| Red Hat Linux 8.0 | Fixed | RHSA-2003:187 |
| Red Hat Linux 9 | Fixed | RHSA-2003:187 |
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0248
- 2026-10-03 Alias added: GHSA-6x45-mjfw-j5f4
References
More Red Hat Linux vulnerabilities
- TI-2000-00907 Format string vulnerability in use_syslog() function in LPRng 3.6.24 allows remote… CVSS 2.0HIGH 10.0
- TI-2000-00248 The web GUI for the Linux Virtual Server (LVS) software in the Red Hat Linux Piranha… CVSS 2.0HIGH 10.0
- TI-1999-00042 Command execution via shell metachars in INN daemon (innd) 1.5 using "newgroup" and… CVSS 3.1CRITICAL 9.8
- TI-2000-00322 The passwd.php3 CGI script in the Red Hat Piranha Virtual Server Package allows local… CVSS 2.0HIGH 10.0
- TI-1999-00363 Buffer overflows in wuarchive ftpd (wu-ftpd) and ProFTPD lead to remote root access… CVSS 2.0HIGH 10.0
- TI-1999-00009 Inverse query buffer overflow in BIND 4.9 and BIND 8 Releases. CVSS 2.0HIGH 10.0
Sources
- CVE-2003-0248 · CVE Program
- CVE-2003-0248 · NVD
- FIRST EPSS
- GHSA-6x45-mjfw-j5f4 · GitHub Advisory Database · CC BY 4.0
- CVE-2003-0248 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences