CVE-2000-0999

CRITICAL

Format string vulnerabilities in OpenBSD ssh program (and possibly other BSD-based operating systems) allow attackers to gain root privileges.

Affects 1 product across 1 vendor.

CVSS 2.010.0
EPSS11.9%
Percentile96th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2000. A critical vulnerability affects Openbsd systems (CVE-2000-0999). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2000-GLOBAL-348994-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2000-0999?
This vulnerability was disclosed in 2000. A critical vulnerability affects Openbsd systems (CVE-2000-0999). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2000-0999?
CVE-2000-0999 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 11.9%.
Is CVE-2000-0999 actively exploited?
No confirmed active exploitation of CVE-2000-0999 as of 2026-09-25.
How do I remediate CVE-2000-0999?
Priority: MEDIUM. PSIRT: [email protected]
What systems are affected by CVE-2000-0999?
CVE-2000-0999 affects Openbsd Openssh.
Vulnerability Details
CVE IDCVE-2000-0999
BSIDBS-2000-GLOBAL-348994-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2000-12-11
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

Format string vulnerabilities in OpenBSD ssh program (and possibly other BSD-based operating systems) allow attackers to gain root privileges.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Format string vulnerabilities in OpenBSD ssh program (and possibly other BSD-based operating systems) allow attackers to gain root privileges. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Openbsd Openssh 4.5
Remediation

No official vendor advisory link on record. See the CVE record →

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 9447 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hashdd1829e02ba6ca19cfd321fb8c5ab154904a59a7624b50e57478a05ae9bd185d066cac69b8e24f99d2f0069f864f05c6b9e657ca74ca14d821b1be49bcfde669
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