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CVE-2003-0264

78
FAUCET Score

CVE-2003-0264 describes multiple buffer overflow vulnerabilities in SLMail 5.1.0.4420, specifically affecting the slmail.exe and POP3 server components. These flaws allow remote attackers to execute arbitrary code by sending overly long EHLO or XTRN arguments to slmail.exe, or a long string/password to the POP3 server. With a CVSS score of 7.5, this vulnerability is considered highly severe, requiring no authentication and having a low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, multiple public exploits exist, including Metasploit modules and several ExploitDB entries, indicating readily available attack tools. Despite the availability of exploits, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.1.0.4420CPE matchmatch criteria
cpe:2.3:a:seattle_lab_software:slmail:5.1.0.4420:*:*:*:*:*:*:*

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
71.48%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: Seattle Lab Mail 5.5 POP3 Buffer Overflow · May 7, 2003
ExploitDB: EDB-16399 · Apr 30, 2010
This CVE's current EPSS score of 0.7148 is in the 99th percentile among its peer group of 51,455 CVEs.

Social Chatter

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

marc.info
marc.info
packetstormsecurity.com / files/161526/SLMail-5.1.0.4420-Remote-Code-Execution.html
nextgenss.com / advisories/slmail-vulns.txt
PatchVendor Advisory