Buffer overflow in Internetdownloadmanager Internet Download Manager
CVE-2020-37234
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.001 (3.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Internetdownloadmanager Internet Download Manager — versions 6.38.12
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49083 (exploit)
- www.internetdownloadmanager.com/ (product)
- www.internetdownloadmanager.com/download.html (product)
- www.vulncheck.com/advisories/internet-download-manager-scheduler-buffer-overflow (third-party-advisory)
Frequently asked questions
- What is CVE-2020-37234?
- CVE-2020-37234 is a medium-severity vulnerability in Internetdownloadmanager Internet Download Manager, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2026-05-16.
- How severe is CVE-2020-37234?
- Medium severity. CVSS v3 base score is 6.2 out of 10.