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CVE-2005-2409

32
FAUCET Score

CVE-2005-2409 describes a format string vulnerability in nbsmtp version 0.99 and earlier, specifically within the util.c file when the software is running in debug mode. This flaw allows unauthenticated remote attackers to execute arbitrary code by injecting format string specifiers into a syslog call. With a CVSS score of 7.5, this vulnerability is highly severe, requiring no authentication and having low attack complexity, leading to potential complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, an ExploitDB entry (EDB-1138) confirms the existence of exploit code, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.99CPE matchmatch criteria
cpe:2.3:a:nbsmtp:nbsmtp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
9.94%
Probability of exploitation in next 30 days
EPSS Percentile
95.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-1138 · Aug 5, 2005
This CVE's current EPSS score of 0.0994 is in the 92nd percentile among its peer group of 51,485 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, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

people.freebsd.org / ~niels/issues/nbsmtp-20050726.txt
Patch
secunia.com / advisories/16279
secunia.com / advisories/16324
exchange.xforce.ibmcloud.com / vulnerabilities/21674
securityfocus.com / bid/14441
vuxml.org / freebsd/debbb39c-fdb3-11d9-a30d-00b0d09acbfc.html