The frag3 preprocessor in Sourcefire Snort 2.4.3 does not properly reassemble certain fragmented packets with IP options, which allows remote attackers to evade detection of certain attacks, possibly related to IP option lengths
Published Feb 22, 2006
5.0
MEDIUMCVSS 2.0
EPSS 1.41%
Description
The frag3 preprocessor in Sourcefire Snort 2.4.3 does not properly reassemble certain fragmented packets with IP options, which allows remote attackers to evade detection of certain attacks, possibly related to IP option lengths.
Affected products
No data.
- 2.4.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
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.
AV:N/AC:L/Au:N/C:N/I:P/A:N
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 | 1.41% (0.01409) | 71.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.38% (0.01376) | 68.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.38% (0.00377) | 57.18th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.71% (0.00713) | 81.14th | v3 (v2023.03.01) |
| Feb 15, 2024 | 0.71% (0.00713) | 79.91th | v3 (v2023.03.01) |
| Jul 17, 2023 | 0.71% (0.00713) | 77.90th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.67% (0.00668) | 76.59th | 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) |
No CWE recorded.
References (4)
- http://secunia.com/advisories/18959 third-party-advisoryx_refsource_SECUNIA
- http://www.securityfocus.com/archive/1/425290/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/16705 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24811 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/18959 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.securityfocus.com/archive/1/425290/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/16705 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/24811 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.