MEDIUM
The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address
Published Apr 2, 2003
5.0
MEDIUMCVSS 2.0
EPSS 1.98%
Description
The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address.
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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.98% 0.01978
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01978
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 | 1.98% (0.01978) | 79.76th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.98% (0.01978) | 77.84th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.78% (0.00784) | 72.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00163) | 54.24th | v3 (v2023.03.01) |
| Jan 29, 2024 | 0.16% (0.00163) | 52.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00177) | 53.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (8)
- ftp://patches.sgi.com/support/free/security/advisories/20030604-01-I vendor-advisoryx_refsource_SGI
- http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/netinet/tcp_input.c.diff?r1=1.136&r2=1.137 x_refsource_CONFIRM
- http://online.securityfocus.com/archive/1/262733 mailing-listx_refsource_BUGTRAQExploitPatchVendor Advisory
- http://www.FreeBSD.org/cgi/query-pr.cgi?pr=35022 x_refsource_MISCPatchVendor Advisory
- http://www.iss.net/security_center/static/8485.php vdb-entryx_refsource_XF
- http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet/tcp_input.c.diff?r1=1.109&r2=1.110 x_refsource_CONFIRM
- http://www.osvdb.org/5308 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/4309 vdb-entryx_refsource_BID
| Link | Providers | Tags |
|---|---|---|
| ftp://patches.sgi.com/support/free/security/advisories/20030604-01-I | vendor-advisoryx_refsource_SGI | |
| http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/netinet/tcp_input.c.diff?r1=1.136&r2=1.137 | x_refsource_CONFIRM | |
| http://online.securityfocus.com/archive/1/262733 | mailing-listx_refsource_BUGTRAQExploitPatchVendor Advisory | |
| http://www.FreeBSD.org/cgi/query-pr.cgi?pr=35022 | x_refsource_MISCPatchVendor Advisory | |
| http://www.iss.net/security_center/static/8485.php | vdb-entryx_refsource_XF | |
| http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet/tcp_input.c.diff?r1=1.109&r2=1.110 | x_refsource_CONFIRM | |
| http://www.osvdb.org/5308 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/4309 | vdb-entryx_refsource_BID |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 2, 2003
Updated Aug 8, 2024
Reserved May 17, 2002
Link CVE-2002-0381
CISA Vulnrichment
Updated n/a