HOMEVULNERABILITIESCVE-2020-37182
HIGHWEAPONIZED

CVE-2020-37182

CWE-121Published: February 11, 2026· Updated: Feb 12, 2026

7.5
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:15.3th

Official 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.

NVD Source

Technical Analysis

CVE-2020-37182 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

A weaponized exploit for CVE-2020-37182 is publicly known. This significantly lowers the barrier for threat actors and increases the urgency for remediation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit & PoC Resources

WEAPONIZEDWeaponized exploit publicly available
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All References (3)

Quick Facts

CVE IDCVE-2020-37182
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-121
CISA KEVNo
ExploitWEAPONIZED
EPSS (30d)0.05%
PublishedFeb 11, 2026

Related CVEs (CWE-121)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2020-37182 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.