CVE-2000-0916

NONECVSS 0.0Weaponized

0.0

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.

CVSS v3: —
EG Score: —
EPSS: 92.4%
KEV: Not listed

Published

December 19, 2000

Last Modified

April 16, 2026

References (4)

cve@mitreftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:52.tcp-iss.asc
cve@mitrehttp://www.securityfocus.com/bid/1766
af854a3a-2127-422b-91ae-364da2661108ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:52.tcp-iss.asc
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/1766

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch
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2026-05-22 21:15 UTCepss_batch
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2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-19522✓ verified
First seen Sep 27, 1999
Linux Kernel 2.2 - Predictable TCP Initial Sequence Number
Open source ↗

Frequently asked(4)

What is CVE-2000-0916?

CVE-2000-0916 is a none vulnerability published on December 19, 2000. 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.

When was CVE-2000-0916 disclosed?

CVE-2000-0916 was first published in the National Vulnerability Database on December 19, 2000, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2000-0916 actively exploited?

CVE-2000-0916 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2000-0916?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2000-0916, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2000-0916

📅 Published

🔄 Last Modified

🔗 References (4)