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CVE-2001-0280

41
FAUCET Score

CVE-2001-0280 describes a critical buffer overflow vulnerability in the MERCUR SMTP server version 3.30, affecting Atrium Software's product. This flaw allows remote, unauthenticated attackers to execute arbitrary commands on the vulnerable server by sending an excessively long EXPN command. With a CVSS score of 10.0, it represents a high-severity threat with complete compromise of confidentiality, integrity, and availability. While not observed in active exploitation campaigns (KEV), public exploit code exists on ExploitDB, indicating its potential for abuse, though it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:atrium_software:mercur:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
12.97%
Probability of exploitation in next 30 days
EPSS Percentile
95.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-20647 · Feb 23, 2001
This CVE's current EPSS score of 0.1297 is in the 94th 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

archives.neohapsis.com / archives/bugtraq/2001-02/0413.html
ExploitVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/6149
osvdb.org / 6027