event.c in acpid (aka acpid2) before 2.0.11 does not have an appropriate umask setting during execution of event-handler scripts, which mig…

published 2012-08-29 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4504

cvss: 4.6; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits: 0; none known

event.c in acpid (aka acpid2) before 2.0.11 does not have an appropriate umask setting during execution of event-handler scripts, which might allow local users to (1) perform write operations within directories created by a script, or (2) read files created by a script, via standard filesystem system calls.

Patch / fix

distros 1

acpid Debian 14, Debian 13, Debian 12 1:2.0.11-1

debian advisories DEBIAN-CVE-2011-4578

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-4578 updated 2026-11-07 cvss 3.6

acpid: Unsafe umask for actions executed by acpid

Red Hat Enterprise Linux 4 acpid Red Hat Enterprise Linux 5 acpid Red Hat Enterprise Linux 6 acpid
affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls

References

Sources

CVE List CVE-2011-4578
NVD CVE-2011-4578

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary