Description
The Apache HTTP Server 1.x and 2.x allows remote attackers to cause a denial of service (daemon outage) via partial HTTP requests, as demonstrated by Slowloris, related to the lack of the mod_reqtimeout module in versions before 2.2.15.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | apache2 | 2.2.15-3 | — |
| Debian 13 | apache2 | 2.2.15-3 | — |
| Debian 12 | apache2 | 2.2.15-3 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
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Slowloris Denial of Service Attack
auxiliary/dos/http/slowloris
GitHub 3 repositories
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michou79/noc21220-cybersecurity-assessment ★ 0 · Oct 8, 2026
Description: Vulnerability Assessment Lab - NOC 21220 | Kali Linux | Nmap | CVE-2007-6750 | Quebec IT Profile
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RoflSecurity/nodeloris ★ 0 · Oct 5, 2026
While the name of this tool sounds like a spell straight out of the Harry Potter universe, it is actually a DoS tool based on SlowLoris (CVE-2007-6750).
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sarjanpatel22/siem-threat-detection-lab ★ 0 · May 16, 2026
Blue-team SIEM lab: Wazuh 4.7.5 detecting 7 simulated attacks (SSH brute force, Slowloris DoS / CVE-2007-6750, web attacks) with real-time MITRE ATT&CK mapping — 3,726+ alerts.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- SSRT101139 vendor-advisory
- 1038144 vdb-entry
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05111017
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
- http://ha.ckers.org/slowloris/
- 20070105 Re: a cheesy Apache / IIS DoS vuln (+a question) mailing-list
- oval:org.mitre.oval:def:19481 vdb-entry signature
- apache-server-http-dos(72345) vdb-entry
- openSUSE-SU-2012:0314 vendor-advisory
- 21865 vdb-entry
- SUSE-SU-2012:0323 vendor-advisory