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CVE-2008-0394

33
FAUCET Score

CVE-2008-0394 describes a buffer overflow vulnerability in Citadel SMTP server version 7.10 and earlier. This flaw allows remote attackers to execute arbitrary code by sending a specially crafted, long RCPT TO command, which is mishandled by the makeuserkey function. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, public exploit code exists on ExploitDB, indicating its exploitability. Despite this, there is no evidence of active exploitation, nor significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.10CPE matchmatch criteria
cpe:2.3:a:citadel:smtp:*:*:*:*:*:*:*:*

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
11.95%
Probability of exploitation in next 30 days
EPSS Percentile
95.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-4949 · Jan 21, 2008
This CVE's current EPSS score of 0.1195 is in the 93rd 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

secunia.com / advisories/28590
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/39807
exploit-db.com / exploits/4949
milw0rm.com / sploits/2008-vs-GNU-citadel.tar.gz
securityfocus.com / bid/27376
securitytracker.com / id
vupen.com / english/advisories/2008/0252