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CVE-2000-0239

23
FAUCET Score

CVE-2000-0239 describes a buffer overflow vulnerability in the MERCUR WebView WebMail server, affecting Atrium Software's Mercur IMAP4, Mailserver, and POP3 server products. This vulnerability allows unauthenticated remote attackers to trigger a denial of service by sending a crafted GET request with an excessively long mail_user parameter. While there is no evidence of active exploitation, public exploit code exists on ExploitDB, and the vulnerability has a medium CVSS score of 5.0, indicating a moderate risk. There is no significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.20.01CPE matchmatch criteria
cpe:2.3:a:atrium_software:mercur_imap4_server:3.20.01:*:*:*:*:*:*:*
3.2CPE matchmatch criteria
cpe:2.3:a:atrium_software:mercur_mailserver:3.2:*:*:*:*:*:*:*
3.20.01CPE matchmatch criteria
cpe:2.3:a:atrium_software:mercur_pop3_server:3.20.01:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.56%
Probability of exploitation in next 30 days
EPSS Percentile
88.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-19810 · Mar 16, 2000
This CVE's current EPSS score of 0.0356 is in the 84th percentile among its peer group of 23,690 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

marc.info
securityfocus.com / bid/1056
ussrback.com / labs36.html