HIGH
ppp utility in FreeBSD 4.1.1 and earlier does not properly restrict access as specified by the "nat deny_incoming" command, which allows remote attackers to connect to the target system
Published Jan 22, 2001
7.5
HIGHCVSS 2.0
EPSS 1.63%
Description
ppp utility in FreeBSD 4.1.1 and earlier does not properly restrict access as specified by the "nat deny_incoming" command, which allows remote attackers to connect to the target system.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.63% 0.01630
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01630
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.63% (0.01630) | 75.34th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.63% (0.01630) | 73.03th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.74% (0.00741) | 71.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.88% (0.00877) | 83.17th | v3 (v2023.03.01) |
| Feb 27, 2024 | 0.88% (0.00877) | 81.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.88% (0.00877) | 79.98th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (4)
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:70.ppp-nat.asc vendor-advisoryx_refsource_FREEBSD
- http://www.osvdb.org/1655 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/1974 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5584 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:70.ppp-nat.asc | vendor-advisoryx_refsource_FREEBSD | |
| http://www.osvdb.org/1655 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/1974 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/5584 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 22, 2001
Updated Aug 8, 2024
Reserved Dec 14, 2000
Link CVE-2000-1167
CISA Vulnrichment
Updated n/a