CVE-1999-0821

FreeBSD seyon allows local users to gain privileges by providing a malicious program in the -emulator argument.

CVSS 4.6 · Medium

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-1999-0821.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

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Exact CVE query

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Metadata

Canonical fields

NVD status

Unavailable

Published

Nov 8, 1999

Modified

Jun 16, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Unavailable

Vendor classifications

How this vector reads

CVSS 2.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Access Vector (AV): Local. The attacker needs local access to the vulnerable system.
Access Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Authentication (Au): None. The attacker does not need to authenticate.
Confidentiality Impact (C): Partial. There is a limited impact to this security property.
Integrity Impact (I): Partial. There is a limited impact to this security property.
Availability Impact (A): Partial. There is a limited impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses