VULNERABILITY INTELLIGENCE
CVE-2021-27565
CVSS score7.5 HIGH
EPSS probability2.59%
CISA KEVNot currently listed
Published2021-08-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
The web server in InterNiche NicheStack through 4.0.1 allows remote attackers to cause a denial of service (infinite loop and networking outage) via an unexpected valid HTTP request such as OPTIONS. This occurs because the HTTP request handler enters a miscoded wbs_loop() debugger hook.
Weakness classification
- nvd@nist.gov: CWE-835
Primary references
- cve@mitre.org — Mitigation, Third Party Advisory
- cve@mitre.org — Product
- cve@mitre.org — Product
- cve@mitre.org — Third Party Advisory, US Government Resource
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Product
- af854a3a-2127-422b-91ae-364da2661108 — Product
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource