Interpretation conflict in Fortinet FortiGate 2.8, running FortiOS 2.8MR10 and v3beta, allows remote attackers to bypass the URL blocker via an (1) HTTP request terminated with a line feed (LF) and not carriage return line feed (CRLF) or (2) HTTP request with no Host field, which is still processed by most web servers without violating RFC2616
Published Feb 14, 2006
7.5
HIGHCVSS 2.0
EPSS 3.09%
Description
Interpretation conflict in Fortinet FortiGate 2.8, running FortiOS 2.8MR10 and v3beta, allows remote attackers to bypass the URL blocker via an (1) HTTP request terminated with a line feed (LF) and not carriage return line feed (CRLF) or (2) HTTP request with no Host field, which is still processed by most web servers without violating RFC2616.
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.
AV:N/AC:L/Au:N/C:P/I:P/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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.09% (0.03093) | 87.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.10% (0.03101) | 86.02th | v5 (v2026.06.15) |
| Jan 15, 2026 | 2.65% (0.02649) | 85.34th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.69% (0.05691) | 89.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.33% (0.09330) | 87.81th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.91% (0.05910) | 89.91th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.73% (0.02733) | 90.91th | v3 (v2023.03.01) |
| Jun 5, 2024 | 2.73% (0.02733) | 90.28th | v3 (v2023.03.01) |
| Jan 5, 2024 | 5.40% (0.05396) | 92.36th | v3 (v2023.03.01) |
| May 21, 2023 | 5.32% (0.05316) | 91.89th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.94% (0.05937) | 92.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.79% (0.06790) | 92.15th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.79% (0.06790) | 91.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.79% (0.06790) | 79.54th | v2 (v2022.01.01) |
References (7)
- http://lists.grok.org.uk/pipermail/full-disclosure/2006-February/042140.html mailing-listx_refsource_FULLDISC
- http://secunia.com/advisories/18844 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.fortiguard.com/advisory/FGA-2006-10.html x_refsource_MISC
- http://www.securityfocus.com/archive/1/424858/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/16599 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/0539 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24626 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.grok.org.uk/pipermail/full-disclosure/2006-February/042140.html | mailing-listx_refsource_FULLDISC | |
| http://secunia.com/advisories/18844 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.fortiguard.com/advisory/FGA-2006-10.html | x_refsource_MISC | |
| http://www.securityfocus.com/archive/1/424858/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/16599 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2006/0539 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/24626 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.