CVE-2009-4033

A certain Red Hat patch for acpid 1.0.4 effectively triggers a call to the open function with insufficient arguments, which might allow local users to leverage weak permissions on /var/log/acpid, and obtain sensitive information by reading this file, cause a denial of service by overwriting this file, or gain privileges by executing this file.

Published: 2009-12-08 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4033 is rated Low Risk (28.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.04%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-4033

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 2023-03-07 1.10% 0.04% -1.06%
2 2023-02-13 1.28% 1.10% -0.18%
3 2023-02-03 — 1.28% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4033

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.9 2.0 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.4 10.0 [email protected]

Weakness enumeration for CVE-2009-4033

OS Trackers for CVE-2009-4033

vendor priority summary link
debian unimportant CVE-2009-4033 unimportant priority: Debian including 1 source packages (acpid), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-4033
redhat high — https://access.redhat.com/security/cve/CVE-2009-4033
ubuntu medium CVE-2009-4033 medium priority: Ubuntu including 1 source packages (acpid), 6 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): not-affected 5, ignored 1. https://ubuntu.com/security/CVE-2009-4033

Affected software / configurations for CVE-2009-4033

Vendor Product Version Raw CPE
tim_hockin acpid 1.0.4 cpe:2.3:a:tim_hockin:acpid:1.0.4:*:*:*:*:*:*:*

References for CVE-2009-4033

cvelogic Threat Intelligence