CVE-2021-42756
Critical · 9.8CVSS
9.8
EPSS
35.0%
Published
Feb 16, 2023
CISA due date
—
The record
Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-111497 A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli… CWE-787
- CVE-2026-112397 Pillow is a Python imaging library. CWE-787
- CVE-2026-112059 libLAS through 1.8.1 contains a heap out-of-bounds write vulnerability in the point… CWE-787
- CVE-2026-89088 A flaw was found in parted. CWE-787
- CVE-2026-89085 A flaw was found in parted. CWE-787
- CVE-2026-85746 MariaDB server is a community developed fork of MySQL server. CWE-787
- CVE-2026-107815 MariaDB server is a community developed fork of MySQL server. CWE-787
- CVE-2026-56851 The Nickname profile can panic with an out-of-bounds slice error when transforming… CWE-787