CVE-2020-37182

Redir 3.3 - Denial of Service

CVSS 8.7 HIGHEPSS 0.5%CWE-121

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.7EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

troglobit · Redir

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References

https://github.com/troglobit/redir https://www.exploit-db.com/exploits/47919 https://www.vulncheck.com/advisories/redir-denial-of-service