CVE-2021-27565 is a denial-of-service vulnerability affecting the InterNiche NicheStack web server, versions up to 4.0.1. An attacker can trigger an infinite loop and networking outage by sending a specially crafted, valid HTTP request, such as an OPTIONS request. This vulnerability has a CVSS score of 7.5 (HIGH), indicating it can be exploited remotely with low complexity and no user interaction, leading to high availability impact. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.0.1CPE matchmatch criteria | cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.