CVE-2020-37182CWE-121

Redir 3.3 - Denial of Service

High · published February 11, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
45.5
In the wild
Unconfirmed
What it is

Redir 3.3 contains a stack overflow vulnerability in the doproxyconnect() function that allows attackers to crash the application by sending oversized input. Attackers can exploit the sprintf() buffer without proper length checking to overwrite memory and cause a segmentation fault, resulting in program termination.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00554 · 45.5th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-02-11T20:37Z
EPSS history
Timeline
  • 11 FEB 20:37Z
    Redir 3.3 - Denial of Service
    cvelistv5