AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-3434

MEDIUM · CVSS 4.9 EPSS 0.20% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-06-28 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-3434
Severity
MEDIUM
CVSS
4.9
EPSS
0.20%
GitHub

Original NVD Description

Stack based buffer overflow in le_ecred_conn_req(). Zephyr versions >= v2.5.0 Stack-based Buffer Overflow (CWE-121). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm