The FWDRV.SYS driver in Kerio Personal Firewall 4.1.1 and earlier allows remote attackers to cause a denial of service (CPU consumption and system freeze from infinite loop) via a (1) TCP, (2) UDP, or (3) ICMP packet with a zero length IP Option field
Published Dec 1, 2004
5.0
MEDIUMCVSS 2.0
EPSS 3.24%
Description
The FWDRV.SYS driver in Kerio Personal Firewall 4.1.1 and earlier allows remote attackers to cause a denial of service (CPU consumption and system freeze from infinite loop) via a (1) TCP, (2) UDP, or (3) ICMP packet with a zero length IP Option field.
Affected products
No data.
- 4.0.6
- 4.0.7
- 4.0.8
- 4.0.9
- 4.0.10
- 4.0.16
- 4.1
- 4.1.1
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: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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.24% (0.03236) | 87.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.24% (0.03236) | 86.61th | v5 (v2026.06.15) |
| Mar 17, 2025 | 4.89% (0.04891) | 88.85th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.07% (0.02070) | 89.51th | v3 (v2023.03.01) |
| Jun 8, 2024 | 2.07% (0.02070) | 89.05th | v3 (v2023.03.01) |
| Nov 8, 2023 | 2.23% (0.02228) | 88.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.56% (0.02564) | 88.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.19% (0.04187) | 87.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.19% (0.04187) | 86.11th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.19% (0.04187) | 69.86th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://www.eeye.com/html/research/advisories/AD20041109.html third-party-advisoryx_refsource_EEYE
- http://www.kerio.com/security_advisory.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/11639 vdb-entryx_refsource_BIDExploitPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/17992 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.eeye.com/html/research/advisories/AD20041109.html | third-party-advisoryx_refsource_EEYE | |
| http://www.kerio.com/security_advisory.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/11639 | vdb-entryx_refsource_BIDExploitPatchVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/17992 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.