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CVE-2005-4411

72
FAUCET Score

CVE-2005-4411 describes a critical buffer overflow vulnerability in Mercury Mail Transport System 4.01b, specifically affecting the PH Server module. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending a specially crafted, excessively long request to TCP port 105. With a CVSS score of 7.5, it represents a high-severity risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed in CISA KEV, exploit intelligence indicates readily available public exploit code, including Metasploit modules and ExploitDB entries, though community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
4.01bCPE matchmatch criteria
cpe:2.3:a:david_harris:mercury_mail_transport_system:4.01b:*:*:*:*:*:*:*

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
64.66%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Mercury/32 PH Server Module Buffer Overflow · Dec 19, 2005
ExploitDB: EDB-16419 · Jun 15, 2010
This CVE's current EPSS score of 0.6466 is in the 99th 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/18611
securitytracker.com / id
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/23669
exploit-db.com / exploits/1375
osvdb.org / 22103
securityfocus.com / bid/16396