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CVE-2008-3889

12
FAUCET Score

CVE-2008-3889 describes a denial-of-service vulnerability affecting Postfix versions 2.4.x, 2.5.x, and 2.6.x when operating on Linux 2.6 kernels. The flaw allows local users to cause application slowdown or exit by exploiting a leakage of epoll file descriptors during the execution of non-Postfix commands, such as those found in a .forward file. This vulnerability has a low severity CVSS score of 2.1, indicating a local attack vector with low complexity and a partial impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.4CPE matchmatch criteria
cpe:2.3:a:postfix:postfix:2.4:*:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:postfix:postfix:2.4.0:*:*:*:*:*:*:*
2.4.1CPE matchmatch criteria
cpe:2.3:a:postfix:postfix:2.4.1:*:*:*:*:*:*:*
2.4.2CPE matchmatch criteria
cpe:2.3:a:postfix:postfix:2.4.2:*:*:*:*:*:*:*
2.4.3CPE matchmatch criteria
cpe:2.3:a:postfix:postfix:2.4.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
49.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0071 is in the 84th percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 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

Vendor Advisories (1)

redhatCVE-2008-3889Moderate

postfix: local DoS via leaked file descriptor

Sep 2, 2008

References

lists.opensuse.org / opensuse-security-announce/2008-09/msg00004.html
secunia.com / advisories/31716
Vendor Advisory
secunia.com / advisories/31800
secunia.com / advisories/31982
secunia.com / advisories/31986
secunia.com / advisories/32231
security.gentoo.org / glsa/glsa-200809-09.xml
securityreason.com / securityalert/4239
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/44865
exploit-db.com / exploits/6472
redhat.com / archives/fedora-package-announce/2008-October/msg00271.html
redhat.com / archives/fedora-package-announce/2008-October/msg00287.html
wiki.rpath.com / wiki/Advisories:rPSA-2008-0311
mandriva.com / security/advisories
postfix.org / announcements/20080902.html
Patch
securityfocus.com / archive/1/495894/100/0/threaded
securityfocus.com / archive/1/496420/100/0/threaded
securityfocus.com / archive/1/498037/100/0/threaded
securityfocus.com / bid/30977
ubuntu.com / usn/usn-642-1
wekk.net / research/CVE-2008-3889