Apache httpd 2.0.59 and 2.2.4, with the Prefork MPM module, allows local users to cause a denial of service via certain code sequences executed in a worker process that (1) stop request processing by killing all worker processes and preventing creation of replacements or (2) hang the system by forcing the master process to fork an arbitrarily large number of worker processes. NOTE: This might be an inherent design limitation of Apache with respect to worker processes in hosted environments.
CVE-2007-3303
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 55.2%
- KEV
- Not listed
Published
June 20, 2007
Last Modified
April 23, 2026
References (12)
- cve@mitrehttp://osvdb.org/37050
- cve@mitrehttp://security.psnc.pl/files/apache_report.pdf
- cve@mitrehttp://securityreason.com/securityalert/2814
- cve@mitrehttp://www.securityfocus.com/archive/1/469899/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/471832/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/bid/24215
- af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/37050
- af854a3a-2127-422b-91ae-364da2661108http://security.psnc.pl/files/apache_report.pdf
- af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/2814
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/469899/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/471832/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/24215
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:22 UTCEPSS rescore
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Related CVEs(same CWE)
Same CWE
10 shownCWE-94
- CVE-2006-1359NVD 0.0EG 9.0EPSS 99%NONE
- CVE-2005-1921NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2005-3302EG 7.3HIGH
- CVE-2005-1876EG 4.5MEDIUM
- CVE-2003-1599EG 0.0NONE
- CVE-2006-1318EG 0.0EPSS 96%NONE
- CVE-2006-1301EG 0.0EPSS 95%NONE
- CVE-2006-1308EG 0.0EPSS 95%NONE
- CVE-2006-1309EG 0.0EPSS 95%NONE
- CVE-2006-1304EG 0.0EPSS 95%NONE
Frequently asked(4)
What is CVE-2007-3303?
CVE-2007-3303 is a none vulnerability published on June 20, 2007. Apache httpd 2.0.59 and 2.2.4, with the Prefork MPM module, allows local users to cause a denial of service via certain code sequences executed in a worker process that (1) stop request processing by killing all worker processes and preventing creation of replacements or (2) hang the system by…
When was CVE-2007-3303 disclosed?
CVE-2007-3303 was first published in the National Vulnerability Database on June 20, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-3303 actively exploited?
CVE-2007-3303 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 55.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2007-3303?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-3303, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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