Buffer Overflow Vulnerability in Internet Download Manager by Tonec Inc.
CVE-2020-37234

6.9MEDIUM

Key Information:

Vendor

Internetdownloadmanager

Status
Internet Download Manager
Vendor
CVE Published:
16 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37234?

Internet Download Manager version 6.38.12 has a notable buffer overflow vulnerability within its Scheduler component. Local attackers can exploit this by injecting oversized input, exceeding 5000 bytes, into the 'Open the following file when done' field. Successfully executing this attack can result in application crashes, leading to denial of service and potential disruption for users.

Affected Version(s)

Internet Download Manager 6.38.12

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37234 - Proof of Concept

References

https://www.exploit-db.com/exploits/49083
exploit
http://www.internetdownloadmanager.com/
product
http://www.internetdownloadmanager.com/download.html
product

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Vincent Wolterman
.