What is CVE-1999-0046?

CVE-1999-0046 is a vulnerability in Bsdi BSD OS, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 1997-02-06.

Is CVE-1999-0046 known to be exploited?

8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Bsdi BSD OS

CVE-1999-0046

Buffer overflow of rlogin program using TERM environmental variable.

Vulnerability class: Buffer Overflow

Published 1997-02-06 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 10.0 (High). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.519 (98.9th percentile), scored 2026-10-29.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 98.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.519 · newest: 0.519 · change: 0.000

Affected products

Bsdi BSD OS — versions 1.1, 2.0, 2.0.1
Digital Ultrix
FreeBSD — versions 1.1.5.1, 2.0, 2.0.5
HP Hp-Ux — versions 10.00, 10.01, 10.08
IBM Aix — versions 3.2, 4.1, 4.1.1
NetBSD — versions 1.0, 1.1
Next Nextstep
Oracle Solaris — versions 2.5.1, 2.6, 7.0
Sun Sunos — versions 4.1.3u1, 4.1.4, 5.3
Debian Linux — versions 0.93

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0046 (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-1999-0046?: CVE-1999-0046 is a vulnerability in Bsdi BSD OS, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 1997-02-06.
Is CVE-1999-0046 known to be exploited?: 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.