CVE-2009-4086

MEDIUM 5.0CVE-2009-4086 · Published 29/11/2009 · updated 16/06/2026

In short

CVE-2009-4086 is a MEDIUM (CVSS 5.0) vulnerability affecting xerver http server (javascript).
Chance of exploitation in the next 30 days (EPSS): 4.8%, higher than 92.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
xerver http server javascript	`= 4.31= 4.32`	No fix yet

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.

References

packetstormsecurity.org/0911-exploits/xerver-split.txt · Exploit
secunia.com/advisories/36681 · Vendor Advisory
securityfocus.com/bid/37064 · Exploit
exchange.xforce.ibmcloud.com/vulnerabilities/54356

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