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CVE-2008-5618

15
FAUCET Score

CVE-2008-5618 describes a denial-of-service vulnerability in the imudp module of rsyslog versions 4.x before 4.1.2, 3.21 before 3.21.9 beta, and 3.20 before 3.20.2. This flaw allows remote, unauthenticated attackers to cause disk consumption by sending a large volume of unauthorized messages. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, leading to a partial impact on availability. 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
3.12.1CPE matchmatch criteria
cpe:2.3:a:rsyslog:rsyslog:3.12.1:*:*:*:*:*:*:*
3.20.0CPE matchmatch criteria
cpe:2.3:a:rsyslog:rsyslog:3.20.0:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:rsyslog:rsyslog:4.1.0:*:*:*:*:*:*:*
4.1.1CPE matchmatch criteria
cpe:2.3:a:rsyslog:rsyslog:4.1.1:*:*:*:*:*:*:*

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
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 42nd percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Advisories (1)

redhatCVE-2008-5618Low

rsyslog: DoS in the imupd plugin by emitting messages when a non-permitted sender tried to send a message to it

Dec 4, 2008

References

rsyslog.com / Topic4.phtml