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CVE-2000-0198

25
FAUCET Score

CVE-2000-0198 describes a buffer overflow vulnerability affecting the POP3 and IMAP servers within the Atrium Software MERCUR mail server suite. This flaw allows unauthenticated remote attackers to trigger a denial of service condition. While rated as MEDIUM severity (CVSS 5.0) due to its network-based attack vector and low complexity, its impact is limited to availability. Although not listed on the KEV catalog, exploit code for multiple buffer overflows in Mercur Mail Server 3.2 is publicly available on ExploitDB, yet there is no evidence of active exploitation or significant community discussion.

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
8.43%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-19806 · Mar 14, 2000
This CVE's current EPSS score of 0.0843 is in the 93rd percentile among its peer group of 23,701 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

archives.neohapsis.com / archives/bugtraq/current/0137.html
archives.neohapsis.com / archives/ntbugtraq/current/0206.html
securityfocus.com / bid/1051