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Vulnerability record · CVE-2016-9564 · published 30 November 2016

CVE-2016-9564: Boa improper input validation vulnerability

Boa · Boa

Buffer overflow in send_redirect() in Boa Webserver 0.92r allows remote attackers to DoS via an HTTP GET request requesting a long URI with only '/' and '.' characters.

7.5 CVSS 3.0 High EPSS 1.4% · top 27.9% CWE-20 · Improper input validation
7.5CVSS 3.0 base score, v2 5.0
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Buffer overflow in send_redirect() in Boa Webserver 0.92r allows remote attackers to DoS via an HTTP GET request requesting a long URI with only '/' and '.' characters.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.ljcusack.io/cve-2016-9564-stack-based-buffer-overflow-in-boa-0-dot-92r ExploitTechnical DescriptionURL Repurposed
http://www.securityfocus.com/bid/94599
http://www.ljcusack.io/cve-2016-9564-stack-based-buffer-overflow-in-boa-0-dot-92r ExploitTechnical DescriptionURL Repurposed
http://www.securityfocus.com/bid/94599

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-9564), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.