CVE-2011-2777

Exp

samples/powerbtn/powerbtn.sh in acpid (aka acpid2) 2.0.16 and earlier uses the pidof program incorrectly, which allows local users to gain privileges by running a program with the name kded4 and a DBUS_SESSION_BUS_ADDRESS environment variable containing commands.

Published: 2012-08-29 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2777 is rated Exploit Available (51.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.31%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2011-2777

EDB-ID Source Kind Published Link
18228 exploit_db edb 2011-12-10 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-2777

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 2025-08-23 0.13% 0.31% +0.18%
2 2025-03-30 0.24% 0.13% -0.11%
3 2025-03-29 — 0.24% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2777

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.4 2.0 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P 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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.4 6.4 [email protected]

Weakness enumeration for CVE-2011-2777

OS Trackers for CVE-2011-2777

vendor priority summary link
debian not yet assigned CVE-2011-2777 not yet assigned 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-2011-2777
gentoo high CVE-2011-2777: 1 GLSA(s) (201310-20), 1 atom(s) (sys-power/acpid); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2777
ubuntu medium CVE-2011-2777 medium priority: Ubuntu including 1 source packages (acpid), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 4, ignored 1, needed 1. https://ubuntu.com/security/CVE-2011-2777

Affected software / configurations for CVE-2011-2777

Vendor Product Version Raw CPE
tedfelix acpid2 <= 2.0.16 cpe:2.3:a:tedfelix:acpid2:*:*:*:*:*:*:*:*
tedfelix acpid2 2.0.0 cpe:2.3:a:tedfelix:acpid2:2.0.0:*:*:*:*:*:*:*
tedfelix acpid2 2.0.1 cpe:2.3:a:tedfelix:acpid2:2.0.1:*:*:*:*:*:*:*
tedfelix acpid2 2.0.2 cpe:2.3:a:tedfelix:acpid2:2.0.2:*:*:*:*:*:*:*
tedfelix acpid2 2.0.3 cpe:2.3:a:tedfelix:acpid2:2.0.3:*:*:*:*:*:*:*
tedfelix acpid2 2.0.4 cpe:2.3:a:tedfelix:acpid2:2.0.4:*:*:*:*:*:*:*
tedfelix acpid2 2.0.5 cpe:2.3:a:tedfelix:acpid2:2.0.5:*:*:*:*:*:*:*
tedfelix acpid2 2.0.6 cpe:2.3:a:tedfelix:acpid2:2.0.6:*:*:*:*:*:*:*
tedfelix acpid2 2.0.7 cpe:2.3:a:tedfelix:acpid2:2.0.7:*:*:*:*:*:*:*
tedfelix acpid2 2.0.8 cpe:2.3:a:tedfelix:acpid2:2.0.8:*:*:*:*:*:*:*
tedfelix acpid2 2.0.9 cpe:2.3:a:tedfelix:acpid2:2.0.9:*:*:*:*:*:*:*
tedfelix acpid2 2.0.10 cpe:2.3:a:tedfelix:acpid2:2.0.10:*:*:*:*:*:*:*
tedfelix acpid2 2.0.11 cpe:2.3:a:tedfelix:acpid2:2.0.11:*:*:*:*:*:*:*
tedfelix acpid2 2.0.12 cpe:2.3:a:tedfelix:acpid2:2.0.12:*:*:*:*:*:*:*
tedfelix acpid2 2.0.13 cpe:2.3:a:tedfelix:acpid2:2.0.13:*:*:*:*:*:*:*
tedfelix acpid2 2.0.14 cpe:2.3:a:tedfelix:acpid2:2.0.14:*:*:*:*:*:*:*
tedfelix acpid2 2.0.15 cpe:2.3:a:tedfelix:acpid2:2.0.15:*:*:*:*:*:*:*

References for CVE-2011-2777

cvelogic Threat Intelligence