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CVE-2009-0798

17
FAUCET Score

CVE-2009-0798 describes a denial-of-service vulnerability in the ACPI Event Daemon (acpid) versions prior to 1.0.10. Remote attackers can exploit this by opening numerous UNIX sockets without closing them, leading to an infinite loop, high CPU consumption, and connectivity loss. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no authentication required, resulting in partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.8CPE matchmatch criteria
cpe:2.3:a:tim_hockin:acpid:*:*:*:*:*:*:*:*
0.99.0CPE matchmatch criteria
cpe:2.3:a:tim_hockin:acpid:0.99.0:*:*:*:*:*:*:*
0.99.1CPE matchmatch criteria
cpe:2.3:a:tim_hockin:acpid:0.99.1:*:*:*:*:*:*:*
0.99.4CPE matchmatch criteria
cpe:2.3:a:tim_hockin:acpid:0.99.4:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:tim_hockin:acpid:1.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 72nd percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: acpid-0:1.0.1-3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: acpid-0:1.0.2-4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: acpid-0:1.0.3-2.el4_7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: acpid-0:1.0.4-7.el5_3.1
View patch

Vendor Advisories (1)

redhatCVE-2009-0798Moderate

acpid: too many open files DoS

Apr 21, 2009

References

bugzilla.redhat.com / show_bug.cgi
Patch
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/34838
Vendor Advisory
secunia.com / advisories/34914
secunia.com / advisories/34918
secunia.com / advisories/35010
secunia.com / advisories/35209
secunia.com / advisories/35231
exchange.xforce.ibmcloud.com / vulnerabilities/50060
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7560
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9955
redhat.com / archives/fedora-package-announce/2009-May/msg01342.html
redhat.com / archives/fedora-package-announce/2009-May/msg01365.html
debian.org / security/2009/dsa-1786
gentoo.org / security/en/glsa/glsa-200905-06.xml
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2009-0474.html
securityfocus.com / bid/34692
securitytracker.com / id
ubuntu.com / usn/USN-766-1