CVE-2021-34173 describes a Denial of Service vulnerability affecting Espressif ESP32 devices running firmware versions 4.2 and earlier. An unauthenticated attacker can trigger a kernel panic and force a device reboot by sending a specially crafted beacon CSA frame over the network. This vulnerability is rated High severity (CVSS 7.5) due to its low attack complexity and complete availability impact, requiring no user interaction. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.2CPE matchmatch criteria | cpe:2.3:o:espressif:esp32_firmware:*:*:*:*:*:*:*:* |
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.