CVE-2020-37234

MEDIUM

Internet Download Manager 6.38.12 Scheduler Buffer Overflow

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37234. PoCs published by Vincent Wolterman.

AI-analyzed exploit summary This Perl script generates a malformed text file containing a buffer overflow payload (1302 'A's, 2 'B's, and remaining 'C's) to trigger a crash in Internet Download Manager's Scheduler feature. The exploit targets a stack-based overflow in the 'Open the following file when done' input field, demonstrating a DoS condition.

Description

Internet Download Manager 6.38.12 contains a buffer overflow vulnerability in the Scheduler component that allows local attackers to crash the application by supplying oversized input. Attackers can paste malicious data exceeding 5000 bytes into the 'Open the following file when done' field to trigger a denial of service condition.

Exploits (1)

exploitdb WORKING POC
by Vincent Wolterman · perldoswindows
https://www.exploit-db.com/exploits/49083

This Perl script generates a malformed text file containing a buffer overflow payload (1302 'A's, 2 'B's, and remaining 'C's) to trigger a crash in Internet Download Manager's Scheduler feature. The exploit targets a stack-based overflow in the 'Open the following file when done' input field, demonstrating a DoS condition.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Internet Download Manager 6.38.12
No auth needed
Prerequisites: Internet Download Manager 6.38.12 installed · user interaction to paste payload into Scheduler input field
devstral-2 · analyzed May 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-49083
https://www.exploit-db.com/exploits/49083
Product product
Official Product Homepage
http://www.internetdownloadmanager.com/
Product product
Product Reference
http://www.internetdownloadmanager.com/download.html
Third Party Advisory third-party-advisory
VulnCheck Advisory: Internet Download Manager 6.38.12 Scheduler Buffer Overflow
https://www.vulncheck.com/advisories/internet-download-manager-scheduler-buffer-overflow

Scores

CVSS v3 6.2
EPSS 0.0001
EPSS Percentile 3.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
Internetdownloadmanager/Internet Download Manager 6.38.12
Published May 16, 2026
Tracked Since May 16, 2026