How severe is CVE-2000-0657?

CVE-2000-0657 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0657 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0657?

CVE-2000-0657 affects Analogx Proxy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-0657?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2000-0657 published?

CVE-2000-0657 was published on 2000-07-25 and last updated on 2026-06-16.

CVE-2000-0657

CVE-2000-0657 is a medium-severity vulnerability in Analogx Proxy with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Analogx Proxy
Published: 2000-07-25
Last modified: 2026-06-16

Description

Buffer overflow in AnalogX proxy server 4.04 and earlier allows remote attackers to cause a denial of service via a long HELO command in the SMTP protocol.

Frequently asked questions

What is CVE-2000-0657?: Buffer overflow in AnalogX proxy server 4.04 and earlier allows remote attackers to cause a denial of service via a long HELO command in the SMTP protocol.
How severe is CVE-2000-0657?: CVE-2000-0657 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0657 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0657?: CVE-2000-0657 affects Analogx Proxy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0657?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0657 published?: CVE-2000-0657 was published on 2000-07-25 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:analogx:proxy:4.4:*:*:*:*:*:*:*

More vulnerabilities in Analogx Proxy

CVE-2003-0410 — Critical (CVSS 10.0): Buffer overflow in AnalogX Proxy 4.13 allows remote attackers to execute arbitrary code via a long URL to port 6588.
CVE-2002-1001 — High (CVSS 7.5): Buffer overflows in AnalogX Proxy before 4.12 allows remote attackers to cause a denial of service and possibly execute…
CVE-2000-0656 — Medium (CVSS 5.0): Buffer overflow in AnalogX proxy server 4.04 and earlier allows remote attackers to cause a denial of service via a…
CVE-2000-0658 — Medium (CVSS 5.0): Buffer overflow in AnalogX proxy server 4.04 and earlier allows remote attackers to cause a denial of service via a…
CVE-2000-0659 — Medium (CVSS 5.0): Buffer overflow in AnalogX proxy server 4.04 and earlier allows remote attackers to cause a denial of service via a…

All CVEs affecting Analogx Proxy →