kernel: TCP connection ISN hijacks
Published May 24, 2001
5.0
MEDIUMCVSS 2.0
EPSS 18.13%
Description
TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.
Affected products
No data.
No data.
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did NOT affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2.
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.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 18.13% (0.18125) | 97.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 18.13% (0.18125) | 96.82th | v5 (v2026.06.15) |
| Mar 30, 2025 | 28.62% (0.28624) | 96.12th | v4 (v2025.03.14) |
| Mar 29, 2025 | 35.65% (0.35651) | 95.48th | v4 (v2025.03.14) |
| Mar 17, 2025 | 28.75% (0.28746) | 96.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.52% (0.02522) | 90.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.52% (0.02522) | 88.47th | 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) |
No CWE recorded.
References (12)
- ftp://patches.sgi.com/support/free/security/advisories/20030201-01-P vendor-advisoryx_refsource_SGI
- http://secunia.com/advisories/8044 third-party-advisoryx_refsource_SECUNIA
- http://securityreason.com/securityalert/57 third-party-advisoryx_refsource_SREASON
- http://www.cert.org/advisories/CA-2001-09.html third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/2682 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033181 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2001-0328 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=963594 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2001-0328
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4922 vdb-entrysignaturex_refsource_OVAL
- https://support.f5.com/csp/article/K19063943?utm_source=f5support&%3Butm_medium=RSS x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2001-0328
| Link | Providers | Tags |
|---|---|---|
| ftp://patches.sgi.com/support/free/security/advisories/20030201-01-P | vendor-advisoryx_refsource_SGI | |
| http://secunia.com/advisories/8044 | third-party-advisoryx_refsource_SECUNIA | |
| http://securityreason.com/securityalert/57 | third-party-advisoryx_refsource_SREASON | |
| http://www.cert.org/advisories/CA-2001-09.html | third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource | |
| http://www.securityfocus.com/bid/2682 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1033181 | vdb-entryx_refsource_SECTRACK | |
| https://access.redhat.com/security/cve/CVE-2001-0328 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=963594 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2001-0328 | ||
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4922 | vdb-entrysignaturex_refsource_OVAL | |
| https://support.f5.com/csp/article/K19063943?utm_source=f5support&%3Butm_medium=RSS | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2001-0328 |
Change history (0)
No recorded changes yet.