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CVE-2000-0657

15
FAUCET Score

CVE-2000-0657 describes a buffer overflow vulnerability in AnalogX proxy server versions 4.04 and earlier. This flaw allows remote, unauthenticated attackers to trigger a denial of service by sending an excessively long HELO command during an SMTP session. Rated with a CVSS score of 5.0 (Medium), the vulnerability is easily exploitable over the network with low attack complexity, resulting in a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.4CPE matchmatch criteria
cpe:2.3:a:analogx:proxy:4.4:*:*:*:*:*:*:*

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
1.98%
Probability of exploitation in next 30 days
EPSS Percentile
78.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0198 is in the 67th 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

archives.neohapsis.com / archives/bugtraq/2000-07/0360.html
ExploitPatchVendor Advisory
analogx.com / contents/download/network/proxy.htm
securityfocus.com / bid/1504
ExploitPatchVendor Advisory