5

CVE-1999-0001: bsdi bsd_os Improper Input Validation

CVSS: 5.0v2.0MediumModified
Published 04-02-2000Last modified 01-08-2024
Open JSON

Vulnerability summary

CVE-1999-0001 is a medium (CVSS 5.0) Improper Input Validation vulnerability in bsdi bsd_os. EPSS estimates a 4.75% chance of exploitation in the next 30 days, higher than 91.7% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
4.75%
0%100%
Low · +1.40 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-02-2000
    PublishedVulnerability first disclosed.
  2. 01-08-2024
    Last modifiedVulnerability information updated.

Description

ip_input.c in BSD-derived TCP/IP implementations allows remote attackers to cause a denial of service (crash or hang) via crafted packets.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

4.75%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

+1.40 pp

From 3.35% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.75%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Bsdi1 product
Freebsd1 product
  • freebsdEOL10 | 11 | 1.1.5.1 | 1.2 | 2.0 | 2.0.1 | 2.0.5 | 2.1.5 | 2.1.6 | 2.1.6.1 | 2.1.7 | 2.1.7.1 | 2.2 | 2.2.2 | 2.2.3 | 2.2.4 | 2.2.5 | 2.2.6 | 2.2.8 | 3.0
Openbsd1 product

3 vendors · 3 products

References

2 links