What’s Vulnerable › Vulnerabilities

CVE-2020-37182: Redir 3.3 - Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-11 · updated 2026-06-17
• Weakness: CWE-121

Description

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.

Affected products

• troglobit Redir: 3.3

References

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

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