CVE-2000-0091

Vpopmail vulnerability

CVSS

10.0

EPSS

12.9%

EPSS pct

96th

Exploited

No known

Buffer overflow in vchkpw/vpopmail POP authentication package allows remote attackers to gain root privileges via a long username or password.

Affected vendor

Inter7

Affected product

Vpopmail

CVSS vector

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

Published

2000-01-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 12.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2000-0091

Confirm whether Inter7 Vpopmail is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2000-0091.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2000-0091

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2000-0091 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2000-0091?

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