CVE-2000-0916

Freebsd vulnerability

CVSS

7.5

EPSS

5.5%

EPSS pct

92th

Exploited

No known

FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.

Affected vendor

Freebsd

Affected product

Freebsd

CVSS vector

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

Published

2000-12-19

Risk analysis

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

Its EPSS score of 5.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2000-0916

Confirm whether Freebsd Freebsd is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2000-0916.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2000-0916

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2000-0916 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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