CRLF injection vulnerability in Xerver HTTP Server 4.31 and 4.32 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via certain byte sequences at the end of a URL
Published Nov 27, 2009
5.0
MEDIUMCVSS 2.0
EPSS 4.76%
Description
CRLF injection vulnerability in Xerver HTTP Server 4.31 and 4.32 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via certain byte sequences at the end of a URL. NOTE: some of these details are obtained from third party information.
Affected products
No data.
- 4.31
- 4.32
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.76% (0.04765) | 91.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.76% (0.04765) | 90.72th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.50% (0.02500) | 84.26th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.77% (0.00768) | 81.92th | v3 (v2023.03.01) |
| Jul 7, 2024 | 0.77% (0.00768) | 81.35th | v3 (v2023.03.01) |
| May 27, 2024 | 0.62% (0.00623) | 78.89th | v3 (v2023.03.01) |
| Apr 15, 2024 | 0.52% (0.00520) | 76.52th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.40% (0.00404) | 73.02th | v3 (v2023.03.01) |
| Apr 25, 2023 | 0.40% (0.00404) | 69.82th | v3 (v2023.03.01) |
| Mar 13, 2023 | 0.52% (0.00517) | 73.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.73% (0.00728) | 77.72th | 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) |
References (4)
- http://packetstormsecurity.org/0911-exploits/xerver-split.txt x_refsource_MISCExploit
- http://secunia.com/advisories/36681 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.securityfocus.com/bid/37064 vdb-entryx_refsource_BIDExploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54356 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.org/0911-exploits/xerver-split.txt | x_refsource_MISCExploit | |
| http://secunia.com/advisories/36681 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.securityfocus.com/bid/37064 | vdb-entryx_refsource_BIDExploit | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/54356 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.