SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2004-1056

Direct Rendering Manager (DRM) driver in Linux kernel 2.6 does not properly check the DMA lock, which could allow remote attackers or local users to cause a denial of service (X Server crash) and possibly modify the video output.

MEDIUM 6.4EPSS 3.27%

Does this matter?

Lower severity and a low EPSS score (3.27%). Track it; it rarely justifies an emergency change on its own.

Description

Direct Rendering Manager (DRM) driver in Linux kernel 2.6 does not properly check the DMA lock, which could allow remote attackers or local users to cause a denial of service (X Server crash) and possibly modify the video output.

CVSS 2.0
6.4 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:P
EPSS
3.27% probability · 88th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
linux/linux kernel · ubuntu/ubuntu linux
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 3.27%26 October 202626 October 2026

EPSS 3.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.