CVE-2020-37182

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.

CVSS v4.0

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.48% chance of exploitation in the next 30 days, 39th percentile

Published

2026-02-11

Updated

2026-02-12

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/47919

References

• CVE Record
• NVD entry

Related

• CVE-2020-37181
• CVE-2020-37183
• CVE-2020-37180
• CVE-2020-37184
• CVE-2020-37179
• CVE-2020-37185