CVE-2009-4086 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 4.8% (pctl 92)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| EPSS | 4.77% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2009-11-29 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| javascript | xerver http server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Xerver 4.31/4.32 - HTTP Response Splitting | 2009-11-18 |
References
- http://packetstormsecurity.org/0911-exploits/xerver-split.txt
- http://secunia.com/advisories/36681
- http://www.securityfocus.com/bid/37064
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54356
- http://packetstormsecurity.org/0911-exploits/xerver-split.txt
- http://secunia.com/advisories/36681
- http://www.securityfocus.com/bid/37064
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54356
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